Posted by **A** on Monday, October 18, 2010 at 8:29pm.

An 8.00 g bullet is fired into a 160 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet remains in the block, and after the impact the block lands d = 1.6 m from the bottom of the table. Determine the initial speed of the bullet.

- physics -
**bobpursley**, Monday, October 18, 2010 at 8:33pm
start with the fall from 1 m.

horizontal distance=horizontalvelociyt*time

where h= 1/2 g t^2 or t= sqrt 2h/g=sqrt 2/9.8

which means horizontal velociity is 1.6/sqrt(2/9.8)

now, having the horizontal velocity, use the conservation of momentum

(M+m)*horizontalvelocity= massbullet*v

solve for v

## Answer This Question

## Related Questions

- physics - An 8.00 g bullet is fired into a 160 g block that is initially at rest...
- physics - An 8.00 g bullet is fired into a 160 g block that is initially at rest...
- physics - An 8.00 g bullet is fired into a 250 g block that is initially at rest...
- physics - An m1 = 8.40 g bullet is fired into a m2 = 2.17 kg block that is ...
- physics - An 8.00 g bullet is fired into a 180 g block that is initially at rest...
- physics - An 8.64g bullet is fired into a 365g block that is initially at rest ...
- Physics - An 8.00 g bullet is fired into a 250 g block that is initially at rest...
- college physics - An 7.81g bullet is fired into a 220g block that is initially ...
- physics - An 8.82g bullet is fired into a 235g block that is initially at rest ...
- physics!! - An 8.82g bullet is fired into a 235g block that is initially at rest...

More Related Questions