Question

A projectile is fired at 30° with momentum
p, neglecting friction, the change in kinetic
energy, when it returns back to the ground,
will be :-
(1) zero
(2) 30 %
(3) 60 %
(4) 100 %​

Answer 1

Answer:

Option(1)

Explanation:

According to law of conservation of energy, projectile acquire same kinetic energy when it comes at same level.