Question

an object travels around a circle of radius 6m with speed 3 pi ms^-1. find the distance and the displacement​

Answer 1

Answer:

Explanation:

Centripetal accl. is equal to v^2/r

ac = 5^2/5 = 5m/s^2.

Tangential accl.(at) is equal to

Change in velocity/ time taken.

Change in velocity = 5-(-5) =10.

Time period =( 2*pi. R) /V = 2*pi sec.

Time taken in half revolution is pi.

at = 10/pi.