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A car travelling at 60km/h over takes another car travelling at 42km/h.Assuming each car to be 5 m long,find the time taken during the overtake and the total road distance used for the overtake
dear pallavi let t time is taken for overtake,and x is the total distance to overtake. distance travelled by blue car in t sex is (x-5)m distance travelled by red car in t sex is (x+5)m t=(x-5)*1000/42 =(x+5)*1000/60........(1) or (x-5)/42=(x+5)/60 calculate x from here. this is the required distance. and put this value in eq (1) and calculate t . Please feel free to post as many doubts on our discussion forum as you can. If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly. We are all IITians and here to help you in your IIT JEE preparation. All the best pallavi. Regards, Askiitians Experts Badiuddin
dear pallavi
let t time is taken for overtake,and x is the total distance to overtake.
distance travelled by blue car in t sex is (x-5)m
distance travelled by red car in t sex is (x+5)m
t=(x-5)*1000/42 =(x+5)*1000/60........(1)
or (x-5)/42=(x+5)/60
calculate x from here. this is the required distance.
and put this value in eq (1) and calculate t .
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