Assertion : In projectile motion, the angle between the instantaneous velocity and acceleration at the highest point is `180^(@)`.
Reason : At the highest point, velocity of projectile will be in horizontal direction only.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer

D

Explanation

At highest point-
`v_(y) = 0` and `v_(x) bot a`
In projectile motion acceleration is directed towards earth and at the peak point the angle between velocity and acceleration is 90, because at peak point vertical component of velocity is zero.