A spring of negligible mass is compressed between two masses on a frictionless t

Question

A spring of negligible mass is compressed between two masses on a frictionless table with sloping ramps at each end. The masses are released simultaneously. The masses have the same volume, but The momentum of M2 is... the momentum of M1 once they both lose contact with the spring. The final height up the ramp reached by M2 is... the height reached by M1. The duration of the force exerted by the spring on M1 is... the tune the force acts on M2. The speed of M1 is... the speed of M2 once they both lose contact with the spring. The force exerted by the spring on M2 is... the force it exerts on M1. The kinetic energy of M1 is... the kinetic energy of M2 once they both lose contact with the spring.

Explanation / Answer

A)  both having equal momenta when they loose contact with the spring E

B)  since m2<m1 the final height reached by m2 is >m1. G

C) Equal since energy in the spring is converted to kinetic, both will be the same E

D)  Less, because an equal force is being applied, the smaller mass will have a greater velocity L

E) Equal, force will always be equal in this case and it is independent of the object it is acting on. E

F) Larger,

KE1/KE2 = (1/2*m1*v1^2)/(1/2*m2*v2^2) = (m1v1)v1/[(m2v2)v2] = v1/v2 = m2/m1 > 1

Hence

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