Physics... Help?

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I need help with problem solving but have answers...

A 2.50 g bullet, traveling at a speed of 425 m/s, strikes the wooden block of a ballistic pendulum, such as that in figure 7-17 in your text. The block has a mass of 215 g. Find the speed of the bullet/block combination immediately after the collision.

2007-11-20 23:06:06 · 1 answers · asked by PinkyTrauma 2 in Science & Mathematics ➔ Physics

1 answers

conservation of momentum
2.5*10^-3 * 425 = 217.5*10^-3 v
so v= 2.5*425/217.5 m/s=4.9 m/s

2007-11-20 23:16:50 · answer #1 · answered by santmann2002 7 · 1⤊ 1⤋