Q1PhysicsUnit 4: Work, Energy and Power
A force acts on a particle in such a
way that position of the particle as a function of time is given by
where is in metre and is in
sec. The work done during the first is
Physics · JEE
Important Questions: Work done by a constant force and a variable force, kinetic and potential energies, work-energy theorem, power for JEE
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Q2PhysicsUnit 4: Work, Energy and Power
Assertion
A load when lifted vertically up requires greater effort than to roll the same load
up the ramp.
Reason
The work done in lifting the load vertically up is less.
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