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

Two capacitors C_(1) and C_(2) are connected to a voltage source in a parallel connection. Another arrangement of these capacitors is connected to the same voltage source but now in series. In which case the risk of handling the capacitors is more? Give reason in support of your answer.

One person is pushing a box A of certain mass with 100 N force .Another box B of the same mass is pushed of in the same direction by other two persons .each of whom is exerrting 35 N force .The force is exerted on box A is just sufficient to make it move .Will the box B move ? Give reason in support of your answer.

According to the third law of motion, when we push on an object, the object pushes back on us with an equal and opposite force. If the object is a massive truck parked along the roadside, it will probably not move. A student justifies this by answering that the two opposite and equal forces cancel each other. Comment on this logic and explain why the truck does not move.

An object is pushed and pulled along a certain angle with respect to horizontal and is moved the some distance on the ground. Now the work done by frictional force will be more in