1. A 2000 kg rock rolls down a hillside at 40 m/s and crashes into a tree, where it comes to rest. The tree does not move. How much work was done on the tree by the rock? Explain your reasoning.
1. A 2000 kg rock rolls down a hillside at 40 m/s and crashes into a tree, where it comes to rest. The tree does not move. How much work was done on the tree by the rock? Explain your reasoning.
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Transcribed Image Text:1. A 2000 kg rock rolls down a hillside at 40 m/s and crashes into a tree, where it
comes to rest. The tree does not move. How much work was done on the tree
by the rock? Explain your reasoning.
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