Question

A motor cyclist rides in a vertical in a hollow sphere of radius 5 m. The minimum
angular speed required so that it does not lose contact with the sphere at the
highest point is: (Take g = 9.8 m/s)​

Answer 1

Given,

r=5m

g=9.8m/s  

2

 

The minimum speed , v=  rg

​  

 

v=  5×9.8

​  

 

v=7m/s