A simple rocket system consists of two parts, A of mass 3m, and B of mass 2m, as
shown in the diagram below. B is stacked on top of A.
Ignore ALL external forces on the rocket.
4.2 Calculate the velocity of B in terms of v immediately after the internal
explosion. (5)
The graph below shows the average force exerted by A on B during the internal
explosion as a function of time.
4.3 Name the physical quantity represented by the area under the graph. (1)
4.4 Redraw the graph in your ANSWER BOOK. On the same set of axes, sketch
the graph of the average force that B exerts on A as a function of time. (2)
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