A body of mass m is released in vacuum from a height H above the ground prove that the law of
conservation of energy in this case
3M
State the law of conservation of mechanical energy
IM
What is the energy possessed by it before hitting the grand
IM
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Answer:
Points
If a particle travels in a closed loop, the net work done (the sum of the force acting along the path multiplied by the distance travelled) by a conservative force is zero.
Conservative force is dependent only on the position of the object. If a force is conservative, it is possible to assign a numerical value for the potential at any point.
Nonconservative force transfer the energy from the system in an energy form which can not be used by the force to transfer back to the object in motion.
Key Terms
potential: A curve describing the situation where the difference in the potential energies of an object in two different positions depends only on those positions.