Questions
A juggler throws continuously balls at the rate of three in each second each with a velocity of 10 m s–1. If the mass of each ball is 0.05 kg his power is
detailed solution
Correct option is D
p = wt=3mv22 t = 3 x ½ x 0.05 x 10 x10 = 7.5 wTalk to our academic expert!
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The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be then the power of heart in watt is:
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