A bus is traveling at 72 km/hr. Brakes are applied and bus comes to a stop after 10m. Find the retardation of the brakes
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Answer:
u=72km/hr = 72×5/18 =20m/s
v=0
s=10
a=?
v²-u²=2as
a= v²-u²/2s
a= 0-20²/2×10
a= -400/20
a= -20m/s²
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