The figure shown below depicts the distance travelled by a body as a function of time.
The average speed and maximum speed between 0 and 20 s are:
The correct option is:C
Given Data:
Total Distance, =20m
Total Time Taken, =20sec
AverageSpeed=TotalDistanceTotalTimeTaken=20m20sec=1ms−1
Maximum speed:
From figure it is clear that maximum distance, =20m
Time taken to achieve the maximum distance, between t=10sec to t=18sec
And distance covered at this time, 20m−4m=16m
So, Maximumspeed=MaximumDistancetimeinterval=16m(18−10)sec=16m8sec=2ms−1