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A rock thrown horizontally at a large bell 54.0 m away is heard to hit the bell 4.80 s later. If the speed of sound is 330 m/s, what was the speed (in meters/second) of the rock? (Disregard gravity.)
15 years ago

Answers

drwls
Let V be the rock horizontal velocity.

(Rock travel time) + (sound travel time) = total time delay = 4.80 s

54/V + 54/330 = 4.80

54/V = 4.636 seconds

Solve for V, in m/s
15 years ago

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