# physics

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How many seconds is required to stop a vehicle travelling 55.9 km/h if it decelerates at 8.2 m/s/s?

• physics -

v₀=55.9 km/h=15.53 m/s

v= v₀ - at
v=0
t= v₀/ a= 15.53/8.2=1.94 s

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