| Thread Closed |
Impact |
Share Thread | Thread Tools |
| Nov10-05, 05:04 AM | #1 |
|
|
Impact
A boy with a weight of 70 kg jumps down from a 3 meter high tree. His velocity on impact I have found to be 7,68 m/s and the impulse is 536,7kg*m/s. Now I need to find the average velocity during impact. What formula do I have to use?
|
| Nov10-05, 05:14 AM | #2 |
|
Recognitions:
|
What's the definition of average velocity?
|
| Nov10-05, 05:50 AM | #3 |
|
|
I suppose, if acceleration is constant, then:
vave. = (v1 + v0)/2 An important point I'd like to raise here: Weight is a force, therefore it has the units of Newtons. Obviously the man doesn't have a mass of 7kg so I can only assume the his weight is 700N (with g = 10ms-2). Regards, Sam |
| Thread Closed |
| Thread Tools | |
Similar Threads for: Impact
|
||||
| Thread | Forum | Replies | ||
| Yet another impact of CO2 emissions | General Discussion | 1 | ||
| Impact problem | Introductory Physics Homework | 10 | ||
| impact | General Physics | 1 | ||
| 'Deep Impact' Impact... | General Astronomy | 1 | ||