A car is moving in a circular path with a uniform speed y. Find the magnitude of change in its velocity when the car rotates through an angle theta.

A car is moving in a circular path with a uniform speed y. Find the ma

1.	A car is moving in a circular path with a uniform speed y. Find the magnitude of change in its velocity when the car rotates through an angle theta.
Answer» Solution :Change in VELOCITY `vec(Deltav)=vecv-vecu` The MAGNITUDE of change in velocity `Deltav=sqrt(v^(2)+u^(2)-2uvcostheta)` As the SPEED is UNIFORM `=\|vecv\|=\|vecu\|=v` `:.Deltav=2vsin((theta)/(2))`.