In a circus , the diameter of globe of death is 20 m . From what minimum height must a motor cyclist start in order to go around the globe successfully ? .

In a circus , the diameter of globe of death is 20 m . From what minim

1.	In a circus , the diameter of globe of death is 20 m . From what minimum height must a motor cyclist start in order to go around the globe successfully ? .
Answer» Here , ` r = (20)/(2) m = 10 m , h = ? ` On rolling down the incline , Loss in PE . = Gain in K . E ` mgh = (1)/(2) m upsilon^(2) :. upsilon = sqrt(2 gh) ` For looping the loop , minimum velocity at the lowest point ` = sqrt (5 gr ) ` `:. sqrt( 5 gr )= sqrt(2 gh ) ` ` h = (5)/(2) r = (5)/(2) xx 10 = m` .

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In a circus , the diameter of globe of death is 20 m . From what minimum height must a motor cyclist start in order to go around the globe successfully ? .

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