Question

The acceleration of the projectile motion is zero when it is at the topmost point.

• A. True
• B. False

Answer 1

The correct option is B False

Projectile motion:

The diagrammatic representation of the projectile motion of a projectile is given below:

1. Here, $u$ is the velocity of the projectile, $u_x$ is the horizontal component and $u_y$ is the vertical component of the velocity of the projectile at an instant.
2. Here, $\theta$is the angle of projection and $A$ is the point where the projectile has the maximum height.
3. The only acceleration acting on the projectile is gravity. Hence, the direction of acceleration will be downwards. The downward direction is considered a negative direction here.

Maximum Height:

1. The direction of gravity (acceleration) is downwards throughout the projectile motion.

2. The diagrammatic representation of the velocity and acceleration at the highest point A is shown below:

Hence, the statement is false because the acceleration of the projectile motion is equal to the acceleration due to gravity when it is at the topmost point.