Questions
Statement A : An engine A can perform a given work in 1 hr and engine B can perform the same work in ½ hr then B has greater power than A.
Statement B : Power is the dot product of force and velocity
detailed solution
Correct option is A
Average power = Total work done/Total time, so average power of B is greater than that of A. Also,Talk 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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