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42.A tree trunk of diameter 20 CM Lies in a horizontal field. A lazy grasshopper wants to jump over the trunk. Find the minimum take-off speed of grasshopper that will suffice.( air resistance is negligible).

Answer» 42.A tree trunk of diameter 20 CM Lies in a horizontal field. A lazy grasshopper wants to jump over the trunk. Find the minimum take-off speed of grasshopper that will suffice.( air resistance is negligible).


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