The average resisting force that must act on `5kg` mass to reduce its speed from `65ms^-1` to `15ms^-1` in `2s` is

The average resisting force that must act on 5kg mass to reduce its speed from 65 to 15ms^-1 in 2s is

A constant force acting on a body of mass of 5 kg change its speed from 5ms^(-1) "to" 10ms^(-1) in 10 s without changing the direction of motion. The force acting on the body is

A constant force acting on a body of mass 3 kg changes its speed from 2ms^(-1) to 3.5 ms^(-1) in 25 s. The direction of motion of the body remains unchanged. Calculate magnitude and direction of the force.

How much work should be done on a bicycle of mass 20 kg to increase its speed from 2 ms^(-1) to 5ms^(-1) ? (Ignore air resistance and friction).

Certain force acting on a 20 kg mass changes its velocity from 5ms ^-1 to 2ms^-1 . Calculate the work done by the force.

A constant force acting on a body of mass 5kg change its speed from 5ms^(-1) in 10s without changing the direction of motion. The force acting on the body is

What force should be applied on a body of mass 500 kg to change its velocity from 4 ms^(1) to 6 ms^(-1) in one second ?

The speed of a car changes from 0 to 5 ms^(-1) in the first phase and from 5 ms^(-1) to 10 ms^(-1) in the second phase and from 10 ms^(-1) to 15 ms^(-1) during the third phase. In which phase the increase in kinetic energy is more ?