A car is moving with speed 20 m s - 1 on a circular path of radius 100 m . Its speed is increasing at a rate of 3 m s - 2 . The magnitude of the acceleration of the car at that moment is

Question

A car is moving with speed 20 m s - 1 on a circular path of radius 100 m . Its speed is increasing at a rate of 3 m s - 2 . The magnitude of the acceleration of the car at that moment is, 1 m s - 2, 3 m s - 2, 4 m s - 2, 5 m s - 2

MARKS App · Accepted Answer

Given v = 20 m s - 1 , R = 100 m d v d t = 3 m s - 2 a c = v 2 R = ( 20 ) 2 100 = 4 m s - 2 a t = d v d t = 3 m s - 2 a = a c 2 + a t 2 = 4 2 + 3 2 = 5 m s - 2

Search any question & find its solution

Looking for more such questions to practice?