Box of mass 10 kg is lifted through a height of 10 m in 49 seconds find the corresponding power
Find the mass of water lifted off by pump of 0.5 horsepower to height of 10 m in 49 seconds
The potential energy of a hammer of mass 10 kg, lifted to the height of 10 m is
In loading a truck, a man lifts boxes of 100 N each through a height of 1.5 m.
(a) How much work does he do in lifting one box ?
(b) How much energy is transferred when one box is lifted ?
(c) If the man lifts 4 boxes per minute, at what power is he working ? (g = 10 m s−2)