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Distance and Displacement

an object of ...

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an object of mass m at a dis†an ce r from the centre of the sun is given a †an gential velocity such that it acquires a parabolic path.what was the speed given to i

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Two blocks of masses $m_{1}$ and $m_{2}$ are connected by a spring of constant k (given figure).The block of mass $m_{2}$ is given a sharp impulse so that it acquires a velocity $v_{0}$ towards right.Find (a) the velocity of the centre of mass,(b) the maximum elongation that the spring will suffer.

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