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Distance-Time Graphs

Distance-Time Graphs

Secondary 3

The graph below shows the distance-time graphs of a float race between John and Roger.

  1. How long does it take Roger to travel the first \(250\)m?
  2. What is the distance between John and Roger when \(t=40\)?
  3. Describe the motion of John’s float from \(t=40\) to \(t=70\).
  4. Find John’s speed when \(t=85\).
  5. What is Roger’s speed when \(t=60\)?

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Answer:(a) \(70\) seconds (b) \(300\) metres (c) John is at rest/not moving/stationary. (d) \(8\frac{1}{3}\) m/s (e) \(5\frac{3}{8}\) m/s

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