Tuesday

March 3, 2015

March 3, 2015

Posted by **Brittany** on Sunday, December 19, 2010 at 9:53pm.

- Physics -
**bobpursley**, Sunday, December 19, 2010 at 9:57pmYour question and those of your classmates keep using the word "prefectly". A reaction is either elastic, or not elastic. One cant be imperfectly elastic, nor perfectly elastic.

momentum:

.640*3= .640V1 + .740V2

energy:

1/2 .640*9=1/2 .640 V1^2+ 1/2 .740 V2^2

use the first equation to solve for V1 in terms of all else, then put that expression into the second equation, and have fun expanding it and collecting the terms. You will have a quadratic, use the quadratic equation to solve it.

- Physics -
**smartass**, Tuesday, November 13, 2012 at 10:31pmactually they can be inelastic.....

**Answer this Question**

**Related Questions**

Physics - A ball of mass 0.640 kg moving east (+x direction) with a speed of 3....

phy - A ball of mass 0.540 kg moving east (+x direction) with a speed of 3.30 m/...

physics - A ball of mass 0.440 kg moving east (+x direction) with a speed of 3....

physics - A 0.060 kg tennis ball, moving with a speed 2.50 m/s, collides head on...

Physics - 1. A 3kg body moving towards the east with a speed of 5 m/s ...

physics - Ball 1, with a mass of 100g and traveling at 12 m/s , collides head on...

physics - Ball 1, with a mass of 180 g and traveling at 18 m/s, collides head on...

physics collision - A 0.060 kg tennis ball, moving with a speed of 7.00 m/s has ...

Physics - A 120 g ball moving to the right at 4.2 m/s catches up and collides ...

Physics - A 6.00 kg ball (ball 1), moving to the right at a velocity of +1.00 m/...