What is the average speed and average velocity till t = 20s?
1 m/s, -1 m/s
1m/s, 0
0, 1 m/s
0, 0
For speed,
Total distance = AB + BC + CD
= 10 m + 0 + 10 m
= 20 m
∴Average speed=dt=2020=1m/s
For velocity,
At t = 20s, the displacement is 0.
∴Average velocity=ot=0
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