Physics 9702 · AS & A Level · Non-uniform motion

Non-uniform motion — practice question

A cheetah and an antelope are $100\,\text{m}$ apart. After the cheetah sees the antelope, it runs towards it. The antelope responds to the cheetah after one second and moves straight away from the cheetah. It takes both animals $2\,\text{s}$ to attain their top speeds. The graph illustrates how the speeds of the two animals change with time. How far apart are the animals, $17\,\text{s}$ after the cheetah began running?

  • A$4\,\text{m}$
  • B$11\,\text{m}$
  • C$54\,\text{m}$
  • D$89\,\text{m}$

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