vishnu swims in a 90 m long pool he covers 180 m in 1 min by swimming frok one end to the other and back along the same straight path. find average s0eed and average velocity
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Answer:
Average speed =
[tex] \frac{total \: distance}{time} \\ = \frac{180}{60 } = 3mps[/tex]
average velocity
[tex] = \frac{displacement}{time} \\ = \frac{0}{60} = 0mps[/tex]
avg. Speed= 3m/s
avg. velocity= 0m/s
EXPLANATION:
Distance= 90+90 m
Time= 60s
avg. Speed= 180m/60s
= 3m/s
Displacement= 90-90 m
Time= 60s
avg. velocity= 90-90m/60s
= 0m/60s
= 0m/s
Hope my answer helps you.