Thursday

April 17, 2014

April 17, 2014

Posted by **Iamdumb** on Wednesday, October 26, 2011 at 11:09pm.

- Physics help please -
**drwls**, Wednesday, October 26, 2011 at 11:51pmUse the distance that the bullet and block travel after impact (X = 0.0500 m)to get the initial kinetic energy of bullet and block together.

(Friction force)*(distance)

= (1/2)(M+m) Vo^2

M + m = 12.0132 kg

Friction force = (0.190)(M+m) g

= 22.37 N

Solve for Vo

Once you have Vo, compute the initial momentum (M+m) Vo

That equals the initial momentum of the bullet. Divide that by bullet mass m for the bullet's velocity.

**Related Questions**

Physics - As part of a forensic test, a 5.0g lead bullet is fired into a fence ...

Physics - 1. A bullet of 0.0500 kg is fired into a block of wood. Knowing that ...

college physics - An 7.81g bullet is fired into a 220g block that is initially ...

physics - An m1 = 8.40 g bullet is fired into a m2 = 2.17 kg block that is ...

University Physics - A 8.3-g bullet, when fired from a gun into a 1.1-kg block ...

physics - A(n) 3.46 g bullet is fired into a(n) 2.4 kg ballistic pendulum and ...

physics - A bullet of mass 4.7 g is fired horizontally into a 2.4 kg wooden ...

physics - A 11.0 g bullet is fired horizontally into a 108 g wooden block that ...

Phyiscs - A 5.00g lead bullet is fired into a wooden fence post. The initial ...

Physics- Elena please help! - A 20.0 g bullet is fired horizontally into a 85 g ...