Question

In the diagram below calculate total distance covered cno1 the average speed

Answer 1

Explanation:

Average speed = (Total distance)/(Total time)=

18

20

≈1m/s

Maximum speed is attained between t=10s to t=18 s.

From graph

Distance covered in this time =20−4=16m

Time taken =10s

So maximum speed =

8

16

=2m/s