# Answer to Question #40873 in Mechanics | Relativity for Yousr

Question #40873

Two masses are positioned on a curved, frictionless track as shown. If the 7.2 kg

mass is released from a height, h, of 2.0 m and slides down the track, with what speed

does it strike the 49 kg mass?

After it strikes the 49 kg mass, the larger mass recoils with a speed of 1.604 m/s.

Assuming the collision is elastic, write out the equation(s) you would require to solve for the recoil speed. Note: you don’t need to solve for it, I’ve already done that for you. Just show me the starting point.

If the speed with which the 49 kg mass recoils is 1.604 m/s, then how high up the

track does the 7.2 kg mass bounce?

mass is released from a height, h, of 2.0 m and slides down the track, with what speed

does it strike the 49 kg mass?

After it strikes the 49 kg mass, the larger mass recoils with a speed of 1.604 m/s.

Assuming the collision is elastic, write out the equation(s) you would require to solve for the recoil speed. Note: you don’t need to solve for it, I’ve already done that for you. Just show me the starting point.

If the speed with which the 49 kg mass recoils is 1.604 m/s, then how high up the

track does the 7.2 kg mass bounce?

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