At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of

Question:

At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle with a radius of 10.0 m until, at t = 1.60 s, it is traveling east.
The car does not alter its speed during the turn. Find
(a) The car's speed,
(b) The change in its velocity during the turn,
(c) Its average acceleration during the turn.