Work, Energy and Power

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Q JEE MAINS 2024

Two waves of intensity ratio $1: 9$ cross each other at a point. The resultant intensities at the point, when (a) Waves are incoherent is...

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Q JEE MAIN

Four particles A, B, C, D of mass$\frac{m}{2}, m, 2 m, 4 m$, have same momentum, respectively. The particle with maximum kinetic energy is :

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Q JEE MAIN

Three bodies A,B and C have equal kinetic energies and their masses are 400g,1.2kg and 1.6kg respectively. The ratio of their linear momenta is :

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Q JEE MAIN

A bullet of mass 50 g is fired with a speed 100m/s on a plywood and emerges with 40 m/s. The percentage loss of kinetic...

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Q JEE MAIN 2024

A body of mass 50kg is lifted to a height of 20m from the ground in the two different ways as shown in the figures....

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Q JEE MAIN 2024

If a rubber ball falls from a height h and rebounds upto the height of h/2. The percentage loss of total energy of the initial...

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Q JEE MAIN 2024

The potential energy function (in J ) of a particle in a region of space is given as $U=\left(2 x^2+3 y^3+2 z\right)$. Here $x, y$...

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Q JEE MAIN 2024

Two bodies of mass 4g and 25g are moving with equal kinetic energies. The ratio of magnitude of their linear momentum is :

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Q JEE MAIN 2025

A body of mass 4 kg is placed on a plane at a point $P$ having coordinate $(3,4) m$. Under the action of force $...

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Q JEE MAIN 2025

An object of mass 1000 g experiences a time dependent force $\vec F = \left( {2t\hat i + 3{t^2}\hat j} \right)N$. The power generated by...

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