Question

During projectile motion when a particle reaches its highest point above the ground:

• A. Its velocity is instantaneously zero
• B. Its acceleration is instantaneously zero
• C. Its weight balances the force of air resistance
• D. The net force it feels is instantaneously zero
• E. None of the above

Answer 1

The correct option is E None of the above

A particle in projectile motion at its highest point above the ground-

(A) vertical component of the velocity becomes zero not the velocity.

(B) Its acceleration is not zero it is under the effect of gravitational acceleration

(C) If weight is balanced by air resistance then particle will not move down after highest point.

(D)It is experiencing a net force $mg$ in downward direction ,not zero.

Therefore we have none of the above.