Question

A projectile is fired at $30{}^\circ$ with momentum $p$. Neglecting friction, tine change in kinetic energy, when it returns back to the ground, will be:

• A. zero
• B. 0.3
• C. 0.6
• D. 1

Answer 1

Answer: (D)

1

Answer 2

It is a scalar quantity therefore, kinetic energy is also constant. When a projectile is projected from the ground and returns back to the ground in a projectile motion, the kinetic energy does not change.