Compute what must be the horizontal distance

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Question: An inflatable raft (unoccupied) floats down a river at an approximately constant speed of 3.8 m/s. A child on a bridge, 65 m above the river, sees the raft in the river below and attempts to drop a small stone onto the raft. The child releases the stone from rest. In order for the stone to hit the raft,

Question 1: What must be the horizontal distance between the raft and the bridge when the child releases the stone?

Please, try to give explanation. Thank you.

Reference no: EM13703482

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