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What is the amount of work done by the force of gravity when a stone of mass'm' is dropped from a multi - stroreyed building of height 'h'?
Wiki User
∙ 10y ago
It's exactly the gravitational potential energy that the stone had, relative
to the ground, before it was dropped:
M G H = (9.8) x (the stone's mass) x (the height of the building) joules
Wiki User
∙ 10y ago
Wiki User
∙ 7y agoThe object initially has gravitational potential energy, which can be calculated with the formula GPE = mgh.As it falls, the potential energy is converted into kinetic energy.
During the fall, part of the kinetic energy may be converted into heat, by friction.
Once it hits the ground, most of the kinetic energy will be transformed into heat.
Wiki User
∙ 7y agoThe stone initially has potential energy before being dropped; as it falls it is converted to kinetic energy as it speeds up; when it hits the ground it is converted to stain energy as it deforms; then it stops and energy is converted to heat energy; total energy is conserved.
Wiki User
∙ 7y agoInitially the stone has potential energy equal to mgh, where g is the acceleration due to gravity = 9.81 ms^-2. This energy is converted to kinetic energy of the stone.
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