An electric motor that can develop 1.0 hp is used is used to lift a mass of 25 kg through a distance of 10.0 m. What is the minimum time in which it can do this ? (Take `g=10m//s^(2))`
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The energy stored in a condenser of capacity 10 muF , charged to 6 kV is used to lift a body of mass of 10 gm. What is the height to 2hich the body can be raised? (g=10m//s^(2))
In a factory it is desired to lift 746 kg of metal through a distance of 60 m is 1 min. The minimum horsepower of the engine to be used will be
Energy stored in a condenser of capacity 10 uF , charged to 6kV is used to lift mass of 10 gm. The height to which the body can be raised is (Take g=10m//s^(2))
A crane lifts a mass of 100 kg to a height of 10 m in 20 s. The power of the crane is (Take g = 10 m s^(-2) )
An engine develops 10 kW of power. How much time will it take to lift a mass of 200 kg to a height of 40 m ( g=10(m)/(sec^2) ) ?
An engine can develop a power of 5kW. How much time it will take to lift a mass of 100 kg to a height of 80 m? (g=10m//s^(2))
Ramesh raises on object of 12 kg through a height of 2.0 m. The work done try him is (take g = 10 m//s ^(2)):
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