Question

If a body is projected with an angle `theta` to the horizontal, then
A. its velocity is always perpendicular to its acceleration
B. its velocity becomes zero at its maximum height.
C. its velocity makse zero angle with the horizontal at its maximum height
D. the body just before hitting the ground, the direction of velocity coincides with the acceleration

Answer 1

Correct Answer - b
In angular projection, the body at the highest point has velocity `=u cos theta` in the horizontal direction which makes zero angles with horizontal direction.