A parachutist drops first freely form a...

A parachutist drops first freely form an areophone for `10 s` and then his parachut opens out. Now he descends with a net retardtion of `2.5 ms^(-2)` If the balil out of the plane at a height of `2495 m` and `g=10 ms^(-2)`, his velocity on reaching the ground will be`.

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A parachutist drops first freely form an areophone for `10 s` and then his parachut opens out. Now he descends with a net retardtion of `2.5 ms^(-2)` If the balil out of the plane at a height of `2495 m` and `g=10 ms^(-2)`, his velocity on reaching the ground will be`.

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