If a body is projected with an angle $\theta$ to the horizontal, then

If a body is projected with an angle $\theta$ to the horizontal, then
  1. its velocity is always perpendicular to its acceleration
  2. its velocity becomes zero at its maximum height
  3. its velocity makes zero angle with the horizontal at its maximum height
  4. the body just before hitting the ground, the direction of velocity coincides with the acceleration

Solution

Direction of velocity is always tangent to the path so at the top of trajectory, it is in horizontal direction.

Asked in: AP EAMCET 2008

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