Question

Fig 8.11 shows the distance- time graph of three objects A, B and C. Study the graph and answer the given questions. Which of the three is travelling the fastest?

Answer 1

From The graph B covers more distance in less time thus, B is the fastest. Each small division shows about 0.57 km.

At the point C travels 9.14 - (0.57 * 3.75) km = 9.14 km - 2.1375 km = 7.0025 km = 7 km.

Thus, as A passes B, C travels about 7 km. (d) distance = 4 km + 0.57 * 2.25 = 5.

Answer 2

From The graph B covers more distance in less time thus, B is the fastest. Each small division shows about 0.57 km.

At the point C travels 9.14 (0.57 x 3.75) km = 9.14 km 2.1375 km = 7.0025 km = 7 km.

Thus, as A passes B, C travels about 7 km. (d) distance = 4 km + 0.57 x 2.25 = 5.