Car is driving with a speed of 36km/h. Then the car stops completely in 2 seconds. What is the negative acceleration of the car?
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initial velocity= 36km/hr =36×1000/60×60=10m/s.
final velocity= 0
time taken = 2seconds
acceleration= final velocity-initial velocity ÷time
= 0-10÷2
=-10÷2
=-5m/s
therefore negative acceleration=(-5m/s)
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