Work, Energy and Power

Related Questions

• The kinetic energy possessed by a body of mass m moving with a velocity v is equal to $\frac{1}{2}m{v^2}$, provided

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• A spring of spring constant 5 ? 103 N/m is stretched initially by 5cm from the unstretched position. Then the work required to stretch it further by another $5cm$ is

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• Four smooth steel balls of equal mass at rest are free to move along a straight line without friction. The first ball is given a velocity of 0.4 m/s. It collides head on with the second elastically, the second one similarly with the third and so on. The velocity of the last ball is

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• A $^{238}U$ nucleus decays by emitting an alpha particle of speed $v\,m{s^{ - 1}}$. The recoil speed of the residual nucleus is (in $m{s^{ - 1}}$)

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• A particle of mass m moving with horizontal speed 6 m/sec as shown in figure. If $m < < M$ then for one dimensional elastic collision, the speed of lighter particle after collision will be

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