A horse pulling a cart has to apply a greater force to start the cart than to keep the cart in motion Why ?

A horse continues to apply a force in order to move a cart with a constant speed. Explain why?

Why has a horse to pull a cart harder during the first few steps of his motion ?

when a horse pulls a cart, the force that helps the horse to move forward is the force exerted by

When a horse pulls a cart, the force that helps the horse to move forward is the force exerted by

Five persons A, B, C, D and E are pulling a cart of mass 100 kg on a smooth surface and the cart is moving with an acceleration of 3ms^(-2) in the east direction. If another person F comes and ans starts pulling the cart with a force of 100 N due west , then the acceleration of the cart will be

A cart is moving horizontally along a straight line with constant speed 30 m/s. A projectile is to be fired from the moving cart in such a way that it will return to the cart after the cart has moved 120m. At what speed (relative to the cart, in m/s) must the projectile be fired ? (Take g=10m//s^2 )