Posted by **Johnathon** on Thursday, February 24, 2011 at 7:39pm.

A 0.060 kg tennis ball, moving with a speed of 7.00 m/s has a head-on collision with a 0.086 kg ball initially moving in the same direction at a speed of 3.10 m/s. Assume a perfectly elastic collision and take the initial direction of the balls as positive.

- physics collision -
**bobpursley**, Thursday, February 24, 2011 at 7:42pm
you have two equations:

first, conservation of momentum. Solve for one ball's final velocity in terms of the other.

then write conservation of eneryg. Substiture your first velocity, then expand it,and solve. A bit of algebra is required.

## Answer this Question

## Related Questions

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

U-Phys - A 0.060kg tennis ball, moving with a speed of 5.8m/s, has a head-on ...

Physics - A 0.0600 kg tennis ball, moving with a speed of 2.50 m/s, has a head-...

Physics - Problem 3- A 10-g metal ball is moving to the left with a velocity of...

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

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

physics - A 2.0-kg ball moving at 10 m/s makes an off-center collision with a 3...

physics - A 2.0-kg ball moving at 10 m/s makes an off-center collision with a 3...

physics - in a game of billiard , a collision occurs between two marble balls of...

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