Question

What is the difference between speed and velocity and acceleration?

Answer 1

see explanation below

Explanation:

Speed is the distance travelled per unit time irrespective of direction, so only magnitude is of importance, and that it is a scalar quantity. Speed can be calculated using the formula: `(distance)/(time)`

Velocity is the distance travelled per unit time in a specific direction, so both magnitude and direction are important, and that it is a vector quantity. Velocity can be calculated using the formula: `(displacement)/(time)`

Acceleration is the rate of change of velocity of an object. Magnitude and direction are both considered, so it is a vector quantity. Acceleration can be calculated using the formula: `a=(v-u)/t`, where `a`=acceleration, `v`=final velocity, `u`=initial velocity and `t`=time.