Question

a motorcyclist loops the loop inside a globe of diameter 19.6m. what should be his minimum speed at the highest point of the globe?​

Answer 1

The minimum speed at the highest point of the globe 9.8 m/s

Given,

The highest point of the globe is its diameter (h) = 19.6 m

Radius of the globe (r) = diameter(h)/2

Radius (r) = 19.6/2 = 9.8 m

formula for the speed = V = $\sqrt{rg}$

g = gravitational constant = 9.8 m/s²

V = $\sqrt{(9.8) (9.8)}$

V = 9.8 m/s

minimum speed at highest point of the globe is 9.8 m/s