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A car moving on a straight highway with speed of 126km/hr. is brought to stop within a distance of 200m. What is the retardation of the car (assumed uniform) and how long does it take for the car to stop? |
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Answer» Answer: you abs byby Explanation: u=126 km/h=126× 18 5
m/s=35m/s v=0 s=200m Newton's EQUATION of motion v 2 −u 2 =2as 0 2 −35 2 =2A(200) a=−3.0625m/s 2
Also v=u+at 0=35−3.06t t=11.4s |
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