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:

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: (A) zero (B) 30% (C) 60% (D) 100%

Tardigrade Admin · Accepted Answer

When a projectile is projected from the ground and returns back to the ground in a projectile motion, the kinetic energy does not change.

Q. 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:

zero

30%

60%

100%

When a projectile is projected from the ground and returns back to the ground in a projectile motion, the kinetic energy does not change.

Q. A projectile is fired at $3 0^{\circ}$ with momentum $p$ . Neglecting friction, the change in kinetic energy, when it returns back to the ground, will be: