Question

The power delivered to a projectile by gravity force at the highest point of the trajectory is

• A. non zero
• B. zero
• C. Positive
• D. can’t say anything

Answer 1

The correct option is B

zero

1. Power is calculated as,

Power = F.v = 0

Where F is the force and

v is the velocity of the projectile.

2. At the highest point of the trajectory, the force is in the vertical direction and velocity is in the horizontal direction.

Hence, the power supplied to the projectile at the highest point of trajectory becomes zero.

The correct option is B.