(a) Name the type of energy possessed by a freely falling body of mass ‘m’ at the highest point 'h'.

(a) have same velocities at any instant

(c) remains constant

The potential energy of freely falling object decreases and its kinetic energy increases (as its velocity increases) progressively. So, in this way the total mechanical energy (Kinetic energy + potential...

When a freely falling body eventually stops on reaching the ground, its kinetic energy gets converted into heat energy (as the body and ground become warm due to collision), sound...

(a)(i) According to the law of conservation of energy, energy can neither be created nor be destroyed but can be transformed from one form to another. Here, the increase in...

Kinetic energy.                                       

Decrease in P.E. = Increase in K.E. So there is no loss in the energy by the object. There is only the transformation of the energy.

(d) : The centre of mass of bodies B and C taken together does not shift as no external force is applied horizontally.

The correct answer is (d) 20 cm. Explanation:  The rise in a capillary tube is given as h = 2S.cosθ/rρg When the entire arrangement is in a freely falling elevator, the effective...

The correct answer is (4) Explanation:  The rise in a capillary tube is given as h = 2S.cosθ/rρg When the entire arrangement is in a freely falling elevator, the effective g =...