Question

In case of a projectile motion, what is the angle between the velocity and acceleration at the highest point?

• A. $0^{o}$
• B. $45^{o}$
• C. $90^{o}$
• D. $180^{o}$

Answer 1

Answer: (C)

$90^{o}$

Answer 2

At the highest point, velocity is acting horizontally and accelerations (= accelerations due to gravity) is acting vertically downwards. Therefore, at the highest point the angle between velocity and accelerations is $90{^\circ}$.