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Work, Energy and Power

Get chapter-wise JEE Main & Advanced questions with solutions

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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Q JEE MAIN 2021
A body of mass ' $m$ ' dropped from a height ' $h$ ' reaches the ground with a speed of $0.8 \sqrt{ } \mathrm{gh}$....
JEE Main Physics Easy
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Q JEE MAIN 2021
A ball of mass 4 kg , moving with a velocity of 10 $\mathrm{ms}^{-1}$, collides with a spring of length 8 m and force constant...
JEE Main Physics Easy
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Q JEE MAIN 2021
A particle of mass $m$ moves in a circular orbit in a central potential field $U(r)=U_0 r^4$. If Bohr's quantization conditions are applied, radii of...
JEE Main Physics Easy
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Q JEE-MAIN 2021
Two identical blocks A and B each of mass m resting on the smooth horizontal floor are connected by a light spring of natural length...
JEE Main Physics Easy
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Q JEE MAIN 2021
As shown in the figure, a particle of mass 10 kg is placed at a point $A$. When the particle is slightly displaced to its...
JEE Main Physics Easy
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Q JEE_MAIN_2021
A boy is rolling a 0.5 kg ball on the frictionless floor with the speed of $20 \mathrm{~ms}^{-1}$. The ball gets deflected by an obstacle...
JEE Main Physics Easy
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