Saturday

February 28, 2015

February 28, 2015

Posted by **Dan** on Sunday, October 18, 2009 at 2:14pm.

What are the final velocities of each ball if the collision is perfectly elastic?

What are the final velocities of each ball if the collision is perfectly elastic?

- physics -
**bobpursley**, Sunday, October 18, 2009 at 3:06pmUse conservation of momentum

m1v1=m1*v1' + m2v2'

solve that for v1'

Then use conservation energy.

1/2 m1*v1^2=1/2 m2*v1'^2 + 1/2 m2*v2'^2

put the v1' expression in that, and turn the algebra cranks, put it in quadratic form, and solve the quadratic equation.

**Answer this Question**

**Related Questions**

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

physics - A softball of mass 0.220 kg that is moving with a speed of 6.5 m/s (in...

Physics - A ball of mass m(1) = 0.250 kg and initial v(1) = 5.00 m/s collides ...

physics - A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in...

physics - PLEASE HELP - A softball of mass 0.220 kg that is moving with a speed ...

Physics Part 1 - Rick is playing billiards and hits the cue ball. It makes ...

physics - a ball of mass 0.1kg makes an elastic head on collision with a ball of...

physics - A ball of mass Ml = 0.250 kg and velocity V01 = +5.00 m/s (see Figure...

PHYSICS!! - I've tried this problem again and again using conservation of ...

Physics - A softball of mass 0.200 kg that is moving with a speed of 8.2 m/s ...