Question

the force needed to start a cart is greater than the force needed to keep it moving with uniform speed give reasons

Answer 1

The force required to start the car is greater than the force required to run it at uniform speed because it needs to overcome static inertia and friction.

A body remains stationery unless an outside force affects it and it remains running unless it is stopped.

Answer 2

The main reason because to start a body in motion from state of rest, we need to apply force much than its inertia.

Hence, we need to apply more force to start its motion.

Where as having constant motion don't requires much force to be applied as motion is already there only motion is need to be continued there.