A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?

(a) have same velocities at any instant

Expression for kinetic energy  Ek= ½ mv2  m = Mass of object  v = Velocity of the object in ms−1  Given that kinetic energy, Ek=25J  (i) If the velocity of an object is doubled, then...

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...

(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...

(a) Kinetic energy of an object is defined as the energy possessed by a body by virtue of its motion.  It is given by, K.E = 1/2 mv2  No, the kinetic energy...

(a) Potential energy, P.E. is the energy possessed by a body of mass, m after reaching a height, h. it is given by, P.E. = mgh  (b) The capacity to do...

K.E. of first mass, m = P.E. lost by mass m = mgh  K.E. of second mass, 2 m = P.E. lost by mass 2 m  = 2 m × g ×...

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.

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 =...