child moving on circular track of radius 40m completes one revolution in 5 minutes. What is his average speed and average velocity in one full revolution?
Required
2. Divya walked 2km on straight road and then walked back 1km.which of the two quantities involved in her walking is greater- the scaler or vector?
3. A car decreases its speed from 80km/h to 60km/h in 5 seconds. Find the acceleration of car.
Required
4. what is meant by retardation .?Give its SI unit.
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I DONT KNOW SORRY
SORRRY
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