Define acceleration. Is it a scalar or vector quantity? What is the diffe
between acceleration and retardation?
OR
Define average speed. A car moving in a straight road covers 150m
seconds and next 150m in 20s. What is the average speed of the car?
Answers
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Answer:
Acceleration: Acceleration is defined as the change in velocity per unit of time. Again, note that both acceleration and velocity are vector quantities. Speed that is the magnitude of velocity is a scalar quantity.
Explanation:
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