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Car starting from speed of 20m/s . travel 1 km in 100.9292828m/s takes 50 seconds to complete 1 km. time taken if car travel 2811 km |
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Answer» u=126 km/h=126× 18 5
m/s=35m/s v=0 s=200m Newton's EQUATION of motion v −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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