Work, Power and EnergyHard
Question
A vertical spring with force constant k is fixed on a table. A ball of mass m at a height h above the free upper end of the spring falls vertically on the free upper end of the spring falls vertically on the spring so that the spring is compressed by a distsnce d. The net work done in the process is
Options
A.mg(h + d) - 
kd2
kd2 B.mg(h - d) - kd2
kd2 C.mg(h - d) + kd2
kd2 D.mg(h + d) + kd2
kd2 Solution
Gravitational potential energy of ball gets convered into elastic potential energy of the spring.
mg(h + d) =
kd2 Net work done = mg(h + d) =
kd2 = 0Create a free account to view solution
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