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Suppose you throw a rock nearly straight up at a coconut
Chapter 2, Problem 22(choose chapter or problem)
Suppose you throw a rock nearly straight up at a coconut in a palm tree, and the rock misses on the way up but hits the coconut on the way down. Neglecting air resistance, how does the speed of the rock when it hits the coconut on the way down compare with what it would have been if it had hit the coconut on the way up? Is it more likely to dislodge the coconut on the way up or down? Explain.
Questions & Answers
QUESTION:
Suppose you throw a rock nearly straight up at a coconut in a palm tree, and the rock misses on the way up but hits the coconut on the way down. Neglecting air resistance, how does the speed of the rock when it hits the coconut on the way down compare with what it would have been if it had hit the coconut on the way up? Is it more likely to dislodge the coconut on the way up or down? Explain.
ANSWER:Step 1 of 2
The rock initially misses the coconut on its way up. But hits the same on its way down.
When the rock hits the coconut on its way down, the former will have a reduction in velocity. But soon it will start to fall down with the acceleration and will gain speed with time as it approaches the ground.