A quantity is measured to be -20 m/s. Is it speed or velocity? Give reason.
amit747:
velocity,, neg. sign indicate that velocity is in opposite direction to the reference
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Answered by
4
Answer:
it is velocity because
velocity is vector quality it show direction that's why it show -20 m/s
(-) negative sign indicate the opposite direction..
Answered by
2
Answer:
it is velocity
it is negetive acceleration
negetive acceleration = retardation.
negetive acceleration=-20m/s
retardation=20m/s
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