while racing on a flat track a car rounds a curve of 56m radius and instantaneously experiences a centripetal acceleration of 36 m/s how fast was the car going.
25m/s
45m/s
35m/s
2.0 x 10^3 m/s
45m/s should be the answer because the acceleration changes into's velocity and goes towards the centre in which is 56/ms that equals v^2/R the speed at the instant.
