a car is moving with a uniform velocity 72 Km/hr . on applying breaks it comes to rest after traveling a distance of 200m. calculate the retardation and tike taken to come to rest.
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Step-by-step explanation:
let the breadth be x.
therefore,length=x+20.
p=100cm
2(x+20+x)=100
4x+40=100
4x=100-40
x=60/4
x=15
therefore,breadth=15cm and length =15+20=35cm.
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