Question

A heavy stone is thrown from a cliff of height h in a given direction. The speed with which it hits the ground
A. must be larger than the speed of projection
B. must be independent of the speed of projection
C. must depend on the speed of projection
D. may be smaller than the speed of projection.

Answer 1

Correct Answer - A::C
The speed with which it hits the ground must depend upon the speed of projection and shall always be larger than the speed of projection, because potential enery of body shall be converted into kinetic energy. Choice `(a)` and `(c)` are correct.