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#1 2007-10-09 16:46:56

Aaron Lapinoi
Guest

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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