# 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?

##### 2 Answers

Mar 24, 2018

#### Answer:

The force is

#### Explanation:

Apply the equation of motion

The initial velocity is

The final velocity is

The distance is

The acceleration is

The mass of the pellet is

According to Newton's Second Law of Motion

The force is

Mar 24, 2018

#### Answer:

#### Explanation:

Applying a motion equation:

Applying Newton's second law:

Again, that's valid assuming we have no other forces on the motion axis acted on the object whatsoever.