How Long Did the 23m Jump Last?

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The discussion focuses on the physics of a man jumping from a bridge into a river 23.0 meters below. The jump lasts approximately 2.17 seconds, with the diver reaching a speed of 21.2 m/s upon impact with the water. A spectator on the bridge hears the splash 2.24 seconds after the diver's takeoff, considering the speed of sound in air at 340 m/s. Participants confirm the accuracy of these calculations while expressing the challenges of understanding physics concepts. The conversation highlights the importance of precise calculations in physics homework.
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Question: A man is jumping into a river that is 23.0m below a bridge.

1. how long does the jump last?
answer: 2.17 seconds
2. how fast was the diver traveling upon impact with the water?
answer: 21.2 m/s
3. If the speed of sound in air is 340 m/s, how long after the diver took off did a spectator on the bridge hear the splash?
answer: 2.24 seconds

TIA...



-andrew
 
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Yes, those answers are correct. Is that what you wanted?
 
thanks... i was just checking because i suck at physics.[b(]

i don't have any answers in the back of the book and our homework is worth almost a quarter of our grade.

physics for scientists and engineers = hard.


-andrew
 

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