Two skaters (A and B) are in contact with each other and start from rest on fric

Question

Two skaters (A and B) are in contact with each other and start from rest on frictionless ice. They push off each other with skater A exerting a constant force on skater B while they remain in contact. The skaters then move apart and are no longer in contact. The mass of skater A is smaller than the mass of skater B. Complete each statement with less than, greater than or equal to.

1)When they no longer are in contact, the kinetic energy of skater B is ________ the kinetic energy of skater A.

2)While they are in contact, the magnitude of the force skater A exerts on skater B is ________ the magnitude of the force skater B exerts on skater A.

3)While they are in contact, the magnitude of the acceleration of skater B is ________ the magnitude of the acceleration of skater A.

4)When they no longer are in contact, the magnitude of the momentum of skater A is ________ the magnitude of the momentum of skater B.

Explanation / Answer

1) Lesser

2) Equal

3) Lesser

4) Equal

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