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#1 2007-10-09 16:46:56
- Aaron Lapinoi
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Space Question
A body of mass M moves, in outer space with a velocity v. It is explosively separated into 2 equal parts each of mass M/2, such that the parts move along the same direction as before. If the speed of one part is v/4, what is the speed of the other? Also, what is the amount of energy, compared to 0.5Mv^2, added to the system by the explosion?
#2 2007-10-10 06:26:00
- vipaman
- Member
- Registered: 2006-09-30
- Posts: 22
Re: Space Question
can't get it
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#3 2007-10-10 06:39:11
- JaneFairfax
- Member
- Registered: 2007-02-23
- Posts: 6,868
Re: Space Question
Use the principle of conservation of momentum. The energy added to the system by the explosion is the difference between the final kinetic energy and the initial kinectic energy of the system.
Last edited by JaneFairfax (2007-10-10 06:39:39)
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