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Serga [27]
3 years ago
8

Using this information...

Physics
1 answer:
Pepsi [2]3 years ago
6 0

19.2\:\text{m/s}

Explanation:

At the top of the tree, the velocity of the pebble is purely horizontal so we can calculate it as

v_{y} = v_{0y} = v_0\cos 40° = (25\:\text{m/s})(0.766)

\:\:\:\:\:= 19.2\:\text{m/s}

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