Question

A particle is projected from a point p with a velocity v at an angle θθ with horizontal. At a certain point q it moves at right angles to its initial direction. Then

Answer 1

A particle is projected from a point P with a velocity v and making an angle theta with the horizontal. The particle starts to move in a direction perpendicular to the initial direction from another point Q. Then 1. Velocity of the particle at Q is vsin theta. 2. ........is v cot theta. 3. Time of flight from P to Q is v cosec theta/ g 4.............v sec theta/ g.