Question 4

4.1 Define the term momentum in words. (2)

4.2 Will the girl-roller-skate combination move TO THE RIGHT or TO THE LEFT after the parcel is thrown?NAME the law in physics that can be used to explain your choice of direction. (2)

The total mass of the roller skates is 2 kg.

4.3 Calculate the mass of the girl. (5)

4.4 Calculate the magnitude of the impulse that the girl-roller-skate combination is
experiencing while the parcel is being thrown. (3)

4.5 Without any further calculation, write down the change in momentum
experienced by the parcel while it is being thrown. (2)

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