Posted by kaitlyn on Tuesday, November 23, 2010 at 11:32am.
An almost identical problem has been answered twice. See:
http://www.jiskha.com/display.cgi?id=1290391597
Calculate how long it takes the block to reach the floor.
1.00 m = (g/2) t^2
t = 0.452 s
Then calculate the horizontal velocity component as it leaves the edge of the table
Vx = 1.8 m/0.452s = 3.98 m/s
Then use conservation of momentum to get the velocity of the bullet, v.
m v = (m+M) Vx
m is the bullet mass and M is the block's mass.
v = (258/8) Vx = ___
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