A particle is projected from a point P with a velocity v at an angle `theta` with horizontal. At a certain point Q it moves at right angles to its initial direction. ThenA. velocity of particle at `Q` is `v sin theta`B. velocity of particle at `Q` is `v cot theta`C. time of flight from `P` to `Q` is `(v//g) cosec theta`D. time of flight from `P` to `Q` is `(v//g)sectheta`

A particle is projected from a point P with a velocity v at an angle `

1.	A particle is projected from a point P with a velocity v at an angle `theta` with horizontal. At a certain point Q it moves at right angles to its initial direction. ThenA. velocity of particle at `Q` is `v sin theta`B. velocity of particle at `Q` is `v cot theta`C. time of flight from `P` to `Q` is `(v//g) cosec theta`D. time of flight from `P` to `Q` is `(v//g)sectheta`
Answer» Correct Answer - B::C

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