Question

A well of death, rider drives round the inner wall of a hollow cylindrical chamber of diameter 20 m. if the coefficient of force of friction between tyres and inner wall of a hollow cylinder is 0.5, then the minimum speed of the rider without sliding down will be (take g = 9.8m/s^2) a) 7 m/s b) 14m/s c) 2√7 m/s d) 7√2 m/s

Answer 1

Explanation:

hear mue u is coefficient of friction...r is radius