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The distance-time graph of the motion of...

The distance-time graph of the motion of a toy car is shown in the figure. Which of the following statements is false for the toy car?

A

Car is moving fastest during the time interval 5 s to 10 s.

B

Average speed of the car is 0.8 m/s.

C

Car is moving with three different speeds during whole journey.

D

Speed of the car at 8s is 0.8 m/s.

Text Solution

Verified by Experts

The correct Answer is:
D
Rate of change of distance is greatest during the time interval 5 s to 10 s. So the car moves fastest during this time interval.
For 5 s to 10 s: `v=(12-4)/(10-5)`=1.6 m/s
Average speed , v=`"Total distance travelled"/"Total time taken"`
`rArr v= (20-0)/25`=0.8 m/s
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