A man tries hard to push a loaded truck but fails to move it. In tis case he does

A boy tries to push a truck parked on the roadside. The truck does not move at all. Another boy pushes a bicycle. The bicycle moves through a certain distance. In which case was the work done more : on the truck or on the bicycle ? Give a reason to support your answer.

A man pushes a wall and falls to displace it He does

No matter he tries hard he cannot play the guitar.

Does the transfer of energy take palce when you push a huge rock with all your might and fail to move it ? Where is the energy you spend going ?

A sloping plank is used to push goods onto a truck. Its length is 3 m and the end which touches the truck is at a height of 1.5 m. Calculate its M.A. If the effort applied is 25 N, what load can be pushed into the truck?

A helicopter of mass M is lowering a truck of mass m onto the deck of a ship. In first case the helicopter and the truck move downward together (the length of the cable remaine constant). Tension in the cable is T_(1) when their downward speed is decreasing at a rate of (g)/(10). In second case when the truck gets close to the deck, the helicopter stops moving downward. While it hovers stationary, it lets out the cabel so that the truck is still moving downward. If the truck is moving downward with a speed decreasing at rate of (g)/(10) , tension in string is now T_(2) , What is ratio T_(1)//T_(2)

A small child tries to moves a large rubber toy placed on the ground. The toy does not move but gets deformed under her pushing force (vecF) which is obliquely upward as shown. Then

Assume that a car is moving behind a loaded truck. Both moving with the same uniform velocity. A box from the top of the truck falls. Does car hit the box before the box hits the road, if driver neither brake nor accelerate ?

A truck of mass M is moved under a force F . If the truck is then loaded with an object equal to the mass of the truck and the driving force is halved, then how does the acceleration change?