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Work, Energy and Power

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
Given below is the plot of a potential energy function U (x) for a system, in which a particle is in one dimensional motion, while...
JEE Main Physics Easy
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Q JEE-MAIN 2021
A body of mass 'm' dropped from a height 'h' reaches the ground with a speed of $0.8 \sqrt{g h}$ . The value of workdone...
JEE Main Physics Easy
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Q JEE-MAIN 2021
A pendulum bob has a speed of 3 m/s at its lowest position. The pendulum is 50 cm long. The speed of bob, when the...
JEE Main Physics Easy
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Q JEE MAIN 2021
Given below is the plot of a potential energy function $\mathrm{U}(\mathrm{x})$ for a system, in which a particle is in one dimensional motion, while a...
JEE Main Physics Easy
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Q JEE MAIN 2021
In a spring gun having spring constant 100 N/m a small ball 'B' of mass 100 g is put in its barrel (as shown in...
JEE Main Physics Medium
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Q JEE MAIN 2021
An engine is attached to a wagon through a shock absorber of length 1.5 m . The system with a total mass of $40,000 \mathrm{~kg}$...
JEE Main Physics Easy
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Q JEE MAIN 2021
A porter lifts a heavy suitcase of mass 80 kg and at the destination lowers it down by a distance of 80 cm with a...
JEE Main Physics Easy
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Q JEE MAIN 2021
A body at rest is moved along a horizontal straight line by a machine delivering a constant power. The distance moved by the body in...
JEE Main Physics Medium
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Q JEE MAIN 2021
If the Kinetic energy of a moving body becomes four times its initial Kinetic energy, then the percentage change in its momentum will be:
JEE Main Physics Easy
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Q JEE MAIN 2022
Two inclined planes are placed as shown in figure. A block is projected from the Point A of inclined plane AB along its surface with...
JEE Main Physics Hard
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