Question

Distance travelled by car B from 0 to 8 s,
SB = Area of trapezium CDEB
= (7+4)*60 = 330 m
Clearly, car B is ahead of car A by 10 m.
NUMERICAL PROBLEMS FOR SELF PRACTICE
1. The following table gives the data about motion of a car.
Time (h) 11.00 11.30 12.00 12.30 1.00
Distance (km)
30 I 65 l 100
30
Plot the distance-time graph.
(1) Find the speed of the car between 12.00 hours and 12.30 hours.
(ii) What is the average speed of the car?
(iii) Is the car's motion an example of uniform motion? Justify.
(CBSE 2011)
[Ans. (D) 70 km h-1 (ii) 50 km h (ii) No, motion is non-uniform
2. The following graph is the velocity-time for a moving body (Fig. 8.28):
15 -
10​

Answer 1

I dont know answer of this question

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