Question

- Find out the change in velocity of object between 20s and 40s.
Displacement in metre
10
25
45
60 80
0
100
120 150
Time in second
0
5
10
15
20
25
30
35
40​

Answer 1

Explanation:

Time = 40- 20 = 20 seconds

total displacement = 80+0+100+120+150 = 450m

so velocity = Displacement / time

= 450/20

22.5m/s