Help with magnitude of final velocity please help!?

A 0.148 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.900 m/s. It has a head-on collision with a 0.291 kg glider that is moving to the left with a speed of 2.16 m/s. Suppose the collision is elastic. Find the magnitude of the final velocity of the 0.148 kg... show more A 0.148 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.900 m/s. It has a head-on collision with a 0.291 kg glider that is moving to the left with a speed of 2.16 m/s. Suppose the collision is elastic.

Find the magnitude of the final velocity of the 0.148 kg glider.

Find the direction of the final velocity of the 0.148kg glider. Left or right?

Find the magnitude of the final velocity of the 0.291 kg glider.

Find the direction of the final velocity of the 0.291kg glider. Left or right?

Thanks for your help!
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