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OTP to be sent to Change
m= 2000kg
u=36km/h = 36×1000m/3600s = 10m/s
work required to be done to stop the car
W = change in K.E. of the car
=1/2mv² - 1/2m (0)² = 1/2mu²
putting d value v get
W= 1/2×2000× [10]² = 100000 J
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Arun(askIITians forum expert)
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