Question 17. A car is moving with a speed of 30 m/s on a circular path of radius 500 m. Its speed is increasing at the rate of 2 m/s². The acceleration of the car is (a) 2 m/s² (b) 9.8 m/s² (c) 1.8 m/2 (d) 2.7 m/s² Answer
Correct option is D) Tangential acceleration:at=2m/s2 Centripetal acceleration:ar=rv2=500900=1.8m/s2 ∴ Net acceleration22+(1.8)2=2.7m/s2
