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Physics 17 Online
OpenStudy (anonymous):

A 3-kg bomb initially at rest explodes into three equal mass pieces. One mass moves to the left (negative x-direction) at 60 m/s and another mass moves down (negative y-direction) at 80 m/s. (a) What is the speed and direction (with respect to the positive x-axis) of the third mass? (b) How much kinetic energy was released in the explosion?

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