Work, Power and EnergyHard
Question
A body of mass 10 kg is released from a Tower of height 20m and body acquires a velocity of 10 ms-1 after falling through the distance 20m. Calculate work done by the push of the air on the body ? (Take g = 10 m/s2)
Options
A.- 500 J
B.+ 500 J
C.- 1500 J
D.+ 1500 J
More Work, Power and Energy Questions
A gas at pressure 6 × 105 N/m2 and volume 1m3 and its pressure falls to 4 × 105 N/m2. When its volume is 3m3. ...The correct graph between the energy E of an electron and its de-Broglie wavelength λ will be:-...A sphere of mass m moving with a constant velocity collides with another stationary sphere of same mass. The ratio of ve...A particle is moving in a circle of radius r under the action of a force F = αr2 which is directed towards centre o...The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA. This ind...