Usha swims in a 90 m long pool. She covers 180 m in one minute, swimming from one end to the other and back along the same straight path.
Do you find a difference in their magnitudes? If so, explain what is the difference and why?
Write the differences between speed and velocity
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Explanation:
Speed:
Speed is how fast an object is moving. It is calculated by the distance covered per unit of time.
Speed has only magnitude, i.e. it is a scalar quantity.
Velocity:
Velocity is the rate at which an object changes position in a certain direction. It is calculated by the displacement per unit of time in a certain direction.
Velocity has a direction as well as magnitude, i.e. it is a vector quantity.
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Answer:
Total displacement =0
Time taken, t=1 min=60sec
Average velocity (Vav)=total time takenTotal Displacement
Vav=600=0 m/s
Explanation:
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