A particle projected from point O with velocity u in a direction making an angle $α$ with the horizontal. At any instant its position is at point P at right angles to the initial direction of projection. Its velocity at point O is

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B

Horizontal velocity at point 'O' = u cos $α$

Horizontal velocity at point 'P' = v sin $α$

In projectile motion horizontal component of velocity remains constant throughout the motion

$∴ v s i n α = u c o s α \Rightarrow v = u c o t α$

Suggest Corrections

Similar questions

A particle is projected from a point O with a velocity u in a direction making an angle $α$ upward with the horizontal. After some time at point P it is moving at right angle with its initial direction of projection. The time of flight from O to P is