Question

5. Figure 2.31 shows how the velocity of four cars changed as they
travelled along a straight road. Give reasons for your answers to
these questions:
(a) Which car was travelling at a steady speed?
(b) Which car was decelerating?
(c) Which car had the greatest acceleration?
End of unit questions grade nine

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Sketch two forces vs.extension graphs, one for a stiff spring the other for a much weaker spring.

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