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# An engine supplies 196 joules of energy. If the energy is supplied to a weight of 500 gms. Howhigh can it be lifted(a) 38.2(b) 39.2(c) 40.2(d) 42

Hrishant Goswami
343 Points
7 years ago

Ans- (b) Energy supplied to the engine = 196 JMass of water = 500 gm = 500/1000 = ½ kg2Acceleration due to ground (g) = 10 mt/sec .Energy required for lifting water = mghH = energy supplied / m x g = 196 x 2 / 1 x 10 = 39.2 mt.

JUnnarkar
37 Points
7 years ago

39.2

Energy supplied to the engine = 196 J

Mass of water = 500 gm = 500/1000 = ½ kg

Acceleration due to ground (g) = 10 mt/sec2.

Energy required for lifting water = mgh H = energy supplied / m x g = 196 x 2 / 1 x 10 = 39.2 mt.