Peter is driving at constant velocity when he suddenly moved his car to the left lane. Did he accelerate his car?
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Sure he accelerated the car.
Acceleration is a vector quantity, i.e., it depends upons both magnitude and direction. Though velocity was constant initially, but as he moved the car, the velocity changed. Or, acceleration is observed.
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Acceleration is defined as the rate of change of velocity.
It is given by,
a = ∆v/∆t
SI – m/s²
Other units include cm/s², etc. etc. etc.
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