Question

A body is moving on a circle of radius 80m with a speed 20m/s which is decreasing at the rate of 5m/s2 at an istant. What is the angle made by its acceleration with its velocity?​

Answer 1

Explanation:

You should write that calculate

What is the angle made by its acceleration with its velocity at the instant for which conditions are given.

solution

centripetal acceleration = 20*20/80 = 5 m/s2

tangential acceleration = 5 m/s2

so angle = tan-1(5/5) = 450