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Work, Energy and Power

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
A body of mass ' $m$ ' dropped from a height ' $h$ ' reaches the ground with a speed of $0.8 \sqrt{ } \mathrm{gh}$....
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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...
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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...
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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...
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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...
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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...
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Q JEE MAIN 2021
A constant power delivering machine has towed a box, which was initially at rest, along a horizontal straight line. The distance moved by the box...
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Q JEE MAIN 2021
Two solids A and B of mass 1 kg and 2 kg respectively are moving with equal linear momentum. The ratio of their kinetic energies...
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Q JEE MAIN 2022
A bad of sand of mass 9.8 kg is suspended by a rope. A bullet of 200 g travelling with speed $10 \mathrm{~ms}^{-1}$ gets embedded...
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Q JEE MAIN 2022
If momentum of a body is increased by 20%, then its kinetic energy increases by :
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