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

1.	A car is moving in a circular path with a uniform speed v. 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))`.