Posted by **Sarah** on Wednesday, May 9, 2012 at 9:09pm.

A bullet of mass 35g strikes a stationary wooden block of mass 2.6kg, becomes embedded in the block, and they both move off at 7.5m/s. What was the original velocity of the bullet?

- Physics -
**Elena**, Thursday, May 10, 2012 at 12:43pm
m1 = 35 g = 0.035 kg, v1 =?

m2 = 2.6 kg, v2 =0,

u = 7.5 m/s

m1•v1 =(m1+m2) •u,

v1 =(m1+m2) •u/m1 = ......

- Physics -
**buhle**, Friday, May 24, 2013 at 5:17am
564'64m/s

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