Defining Force

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Questions

• Question #cf2dd
• What does force mean?
• What are some examples of forces?
• What is a centrifugal force?
• How can I define intermolecular forces?
• If an object weighing 50N displaces a volume of water with a weight of 10N, what is the buoyant force on the object?
• Explain how force and energy change are related?
• How can force affect the motion of an object?
• Explain how force, energy and work are related?
• Can forces be combined?
• How can i calculate force of tension?
• How do you calculate the force of buoyancy?
• How does force affect friction?
• How does force change the shape of an object?
• How does force differ from impulse?
• How does force relate to kinetic energy?
• How does force relate to work?
• How does pressure differ from force?
• Is force a scalar quantity?
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• Question #1e0d7
• Question #fcdef
• Question #57654
• Question #04812
• A bullet of mass 15g leaves the barrel of a rifle with a speed of 800 m/s. If the length of the barrel is 75 cm, what is the the average force that accelerates the bullet?
• Question #20659
• Question #384a4
• Question #a1770
• If two people are pulling on the same rope at #"10 N"# of force, what is the tension on the rope?
• Question #ffd5e
• Question #489de
• How are mass, net force and acceleration related to each other?
• What is the relationship between Balanced Force and Net Force?
• Ryan hit a baseball with an acceleration of 40 m/#s^2#. The mass of the baseball is 0.5 kg. What is the force?
• When a 40-N force, parallel to the incline and directed up the incline, is applied to a crate on a frictionless incline that is 30° above the horizontal, the acceleration of the crate is 2.0 m/s^2, up the incline. The mass of the crate is ?
• Question #6f4b2
• A flower pot with a mass of 6.8kg is hanging by 4 wires that make an angle of 53° from the horizontal. What is the tension on each wire?
• A flower pot with a mass of 6.8kg is hanging by 4 wires that make an angle of 53° from the horizontal. If there were 7 wires connected to the pot instead of 4, what would the tension on each wire be?
• A flower pot with a mass of 6.8kg is hanging by 4 wires that make an angle of 53° from the horizontal. If the pot with 7 wires were instead located on Jupiter where the acceleration due to gravity is -23.1m/s², what would the tension in each wire be?
• Question #ca6dc
• A 25 Kg paint bucket is hanging by a massless cord from another 50 kg paint bucket also hanging by a massless cord. If the buckets are at rest, what is the tension in each cord?
• A 5.0 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.0 m/s, what is the force exerted by the rope on the bucket of water?
• A 5.4 kg bag of groceries is in equilibrium on an incline of angle 15°. What is the magnitude of the normal force on the bag?
• A man is pulling on his dog with a force of 70.0 N directed at an angle of +30.0° to the horizontal. What are the x and y components of this force?
• The tension in a 2 m length of string that whirls a 1 kg mass at 4 m/s in a horizontal circle is calculated to be 8 N. How do you alculate the tension for the following case: twice the mass?
• Question #16656
• Three men are pulling on ropes attached to a tree the first man exerts a force of 6.0 N north, the second a force of 35 N east, and the third 40 N to south. What is the magnitude of the resultant force on the tree?
• A kayaker paddles with a power output of 490 W to maintain a steady speed of 1.50 m/s. What is the resistive force exerted by the water on the kayak?
• How much force is required to accelerate a #2# #kg# mass at #3# #m#/#s^2#?
• During a hard stop, a car and its passengers slow down with an acceleration of #8.0# #m##/##s^2# What magnitude force does a #50#-#kg# passenger exert on the seat belt in such a stop?
• A 7 kg. mass is moved across table at 25 m/sec. What force caused the acceleration?
• A mover pushes a 30.0 kg crate across a wooden floor at a constant speed of 0.75 m/s. If the coefficient of static friction for wood-on-wood is 0.20, how much force does the mover exert on the crate?
• An object with a mass of #2.0# #kg# accelerates #2.0# #m##/##s^2# when an unknown force is applied to It. What is the amount of the force?
• A book weighs #6.0# #N#. If the acceleration of gravity is #9.8# #m##/##s^2#, what is the mass of the book in kilograms?
• 3 women push a stalled car. Each woman pushes with a #425# #N# force. What is the mass of the car if the car accelerates at #0.85# #m##/##s^2#?
• A car has a mass of 710 kg. It starts from rest and travels 40.0 m in 3.0s. The car is uniformly accelerated during the entire time. How big is the net force acting on the car?
• Will an object with weight of 90 N and a buoyant force of 85 N sink or float?
• About 40 J is required to push a crate 4 m across a floor. If the push is in the same direction as the motion of the crate, what is the force on the crate?
• If a force of 1000N is required for a car to accelerate at a rate of #2# #m##/##s^2#, what is the mass of the car?
• Question #b7a84
• Question #b8f05
• A 2.0-kg ball is moving with a constant speed of 5.0m/s in a horizontal circle whose diameter is 1.0 m. What is the magnitude of the net force on the ball?
• What is the moment of force about point O? (Refer to the image below)
• How much would a 2000 N car weigh on the Moon?
• How do you find the force needed to accelerate a 0.007 kg pellet from rest to 125 m/s over a distance of 0.8 m along the barrel?
• What is normal force?
• What does balanced force mean?
• Question #9547d
• Resolve two forces at 120º to each other?
• What are field forces in physics?
• What is the force on a 1000 kg elevator that is falling freely at the acceleration of gravity?
• Effort supported by a rope-bridge ?
• Question #ed216
• Question #fd48f
• Question #ce1a2
• What is the volume of a #40 " m"xx20 " m"xx12 " m"# room in cubic feet?
• What is meant by 'terminal velocity' for a skydiver, and what forces are acting when a skydiver is falling at terminal velocity?
• Question #e5ff1
• If a gallon of paint covers a #25.0 " m"^2# wall, what is the thickness of the paint?
• What is the volume in cubic meters of a pyramid 481 feet tall with a base of 13.0 acres?
• Question #032b6
• Question #dbd4a
• What is the normal force exerted by a road inclined 8 degrees from the horizontal on a #1500kg# car?
• An astronaut in space is in orbit #250# #km# above the surface of Earth. What is the gravitational acceleration on the astronaut at this altitude?
• Question #ce495
• Question #3fd94
• A heavy block of mass M hangs in equilibrium at the end of a rope of mass m and length l connected to a ceiling . Determine the tension in the rope at a distance x from the ceiling ?
• Question #57ef5
• Question #747d7
• As the string passes through the vertical, the narrow beam of light is interrupted by the cylinder for 22 ms . The cylinder has a diameter of 2.5 cm. How to calulate the actual speed of the cylinder?
• Does an open system differ from a closed system?
• Question #2f185
• Question #e14fb
• Question #c3219
• If a worker pulls a 10kg bucket up a 25 m well, how much work has he or she done?
• Suppose a car sitting on a hydraulic lift exerts a downward force of 1,750 N on a piston with an area of 0.6m^3. How much pressure does the car exert on the piston?
• Suppose that a large cargo truck needs to cross a bridge, The truck is 30 m long and 3.2 m wide. The cargo exerts a force or 54.000 N The bridge can only withstand 450 Pa of pressure. Is it safe for the truck to cross the bridge?
• Quick explanation. An object will stay afloat as long as it weighs less than or equal to its displaced fluid weight in water?
• Question #20a23
• Question #413a0
• Question #60c57
• Question #056e5
• Question #db318
• An object has a mass of 5.5 kilograms. What is its weight in newtons?
• Question #4210f
• A 60-kg person is traveling in a car moving at 16 m/s, when the car hits a barrier. The person is not wearing a seat belt, but is stopped by an air bag in a time interval of 0.20 s. Determine the average force that the air bag exerts on the person?
• Question #5cb57
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• Question #b8bfd
• Question #98018
• Question #872c3
• If you jump from a table and land with your knees locked, why are you more likely to be hurt than if you land with your legs relaxed?
• Question #20dd3
• Question #2054c
• Can you solve this problem in Mechanics?
• Question #083e5
• Can you solve this problem on Mechanics?
• Another problem on Mechanics?
• More on Mechanics?
• Question below, how does the way someone pushes two boxes affect the action reaction forces on each box?
• How to solve this exercise in Mechanics?
• Solve this exercise in Mechanics?
• A force of 20 N accelerates a 2 kg object. How much force is needed to give the same acceleration to a 20 kg object?
• What is the formula for finding force?
• Question #020f1
• Question #18dea
• A #9.7"kg"# mass is positioned on top of a vertical spring. What is the upward force exerted on the mass by the spring?
• Question #8ca42
• Question #9109a
• Car is driving with a speed of 36km/h. Then the car stops completely in 2 seconds. What is the negative acceleration of the car?
• Question #161a9
• A force of magnitude #F_1# accelerates a body of mass #m# from rest to speed #v#. Another force #F_2# accelerates a body of mass #2m# from rest to a speed #2m#. What is the ratio of the work done by #F_2# to that of #F_1#?
• Question #09151
• Question #f84db
• Question #b44f9
• Question #8212d
• An elevator car weighs 5500 N. If the car accelerates upwards at a rate of 4.0 m/s2, what is the tension in the support cable lifting the car?
• Question #765f8
• Question #324f9
• Question #032c6
• Question #90503
• Question #b38a1
• Question #64e24
• Question #dcba7
• Question #a4f96
• What are conservative forces?
• Question #82eae
• Question #dd076
• Can anyone help confirm the answer I have to these 3 questions?
• Question #ed4ff
• Question #d9079
• Question #0360e
• Question #85094
• Question #484de
• Question #b3cfb
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• Question #281a6
• Question #b3840
• Question #68902
• Consider the following model steel bridge. What would the real bridge weigh and would the real bridge sag?
• Why would tension be smaller if the string were parallel to the lab bench?
• What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec2? And How do I draw a Free Body Diagram of this?
• Question #9abac
• Question #86ecf
• Question #bdced
• Statics equilibrium?
• Question #ada03
• Question #4dace
• Question #2546b
• Question #f1566
• Free-Body Diagram?
• Question #fae13
• Question #849c2
• Question #e4d20
• Question #72067
• Question #ad859
• A 300g ball at rest is struck with a bat with a force of 150N. If the bat was in contact with the ball, for 0.02 seconds, what is the ball's velocity?
• A 60 kg boy rides in an elevator that accelerates downward at 1.8 m/s. What is the net force excerted on the boy?
• Jennifer works for an automaker and tests the safety performance of cars. She watches a 2,000-kilogram car crash into a wall with a force of 30,000 newtons. What’s the acceleration of the car at impact? Use A=v-u/t .
• How do vehicles vertically take off or land?