jee_main_2025_29_jan_morning - Work, Energy and Power Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #0 Collisions
As shown below, bob A of a pendulum having massless string of length 'R' is released from 60° to the vertical. It hits another bob B of half the mass that is at rest on a friction less table in the centre. Assuming elastic collision, the magnitude of the velocity of bob A after the collision will be (take g as acceleration due to gravity) {{IMG1}}
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QUESTION #0 Vertical Circular Motion
A body of mass 'm' connected to a massless and unstretchable string goes in a vertical circle of radius 'R' under gravity g. The other end of the string is fixed at the center of a circle. If velocity at top of circular path is n √(gR) , where, n ≥ 1 , then ratio of kinetic energy of the body at bottom to that at top of the circle is
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Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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