Question

A car moving on a circular path of length
4π meter experiences a force of 6 N
towards the centre of the path. If the mass
of the car is 108 kg, the velocity of the
car is​

Answer 1

circumference =

$4\pi$

$4\pi = 2\pi \: .r \\ r = 2m \\ f = (mv ^{2} ) \div r \\( mv ^{2} ) \div r = 6 \\ (108 {v}^{2} ) \div 2 = 6 \\ \\ {v}^{2} = 1 \div 9 \\ v = 1 \div 3$