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)
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3
Given,
r=5m
g=9.8m/s
2
The minimum speed , v= rg
v= 5×9.8
v=7m/s
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