Question

a car travelling on a circular road of radius 500m. at some instant its speed is 30m/s and is increasing at the rate of 2m/s^2 .what is its acceleration.

Answer 1

The acceleration has 2 components : tangential (a = 2 m/s²) and centripetal (a =v²/r=30²/500=1.8 m/s²).

Net acceleration =√(2² + 1.8²) = 2.69 m/s²