A particle is dropped a height h. A constant horizontal velocity is given to the particle. Taking g to be constant every where, kinetic energy E of the particle w. r. t. time t is correctly shown in

Options

A.
B.
C.
D.

Answer

A

Explanation

As particle is projected with some velocity therefore its initial kinetic energy will not be zero.
As it moves downward under gravity then its velocity increases with time K.E. `prop v prop t " "("As " v prop t)`
So the graph between kinetic energy and time will be parabolic in nature.