Work, Energy and Power

Related Questions

• Masses of two substances are 1 g and 9 g respectively. If their kinetic energies are same, then the ratio of their momentum will be

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• A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2m and sticks to it. Now the combined mass starts to move. What will be the combined velocity

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• A light and a heavy body have equal kinetic energy. Which one has a greater momentum ?

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• A force acts on a 30 gm particle in such a way that the position of the particle as a function of time is given by $x = 3t - 4{t^2} + {t^3}$, where x is in metres and t is in seconds. The work done during the first 4 seconds is

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• A body of mass 3 kg is under a force, which causes a displacement in it is given by $S = \frac{{{t^3}}}{3}$ (in m). Find the work done by the force in first 2 seconds

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