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## Homework Statement

A spring of negligible mass is compressed between two masses (M1 is less massive than M2) on a frictionless table with sloping ramps at each end. The masses are released simultaneously. Select the appropriate symbol for each statement: G (Greater than), L (Less than), or E (Equal to).

A) The speed of M1 is ... the speed of M2 once they both lose contact with the spring.

B) The final height up the ramp reached by M2 is ... the height reached by M1.

C) The duration of the force exerted by the spring on M1 is ... the time the force acts on M2.

D) The kinetic energy of M2 is ... the kinetic energy of M1 once they both lose contact with the spring.

E) The magnitude of the force exerted by the spring on M2 is ... that it exerts on M1.

F) The magnitude of M2's momentum is ... that of M1 before and just after loss of contact with the spring.

## Homework Equations

Well, there are no numbers so I don't really need to use equations but:

p=mv

f=ma

## The Attempt at a Solution

This is what I put, but at least one of these are wrong.

A)

**Greater**because the same force is being applied to a smaller mass.

B)

**Less**because the smaller mass would have a greater velocity

C) duration of m1 is

**greater**because it would travel farther.

D) the KE is

**equal**because they are pushed at the same force and even though one is going faster, it's a lesser mass, so it balances out.

E) the force exerted is

**equal**because they are being pushed by the same force.

F) the momentum is the same because the force is the same. The lower mass balances with the higher velocity.

Any help would be appreciated, thanks!