Laws of Motion

Related Questions

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• A lift accelerated downward with acceleration 'a'. A man in the lift throws a ball upward with acceleration ${a_0}({a_0} < a).$ Then acceleration of ball observed by observer, which is on earth, is

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• The upper half of an inclined plane of inclination $\theta$ is perfectly smooth while the lower half is rough. A body starting from the rest at top comes back to rest at the bottom if the coefficient of friction for the lower half is given by

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• In a rocket of mass 1000 kg fuel is consumed at a rate of 40 kg/s. The velocity of the gases ejected from the rocket is $5 \times {10^4}\,m/s$. The thrust on the rocket is

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