Question

4. Find out the change in velocity of object between 20s and 40s.
100
120
150
80
0
25
45
60
10
Displacement in metre
30
35
5
20
25
0
10
15
Time in second
a.90 m/s
b.4.5m/s
c.9m/s
d.150m/s​

Answer 1

Answer:

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Answer 2

Answer:

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