Two cars are moving in the same direction

Asked by admin @ 25/08/2021 in Physics viewed by 347 People

Two cars are moving in the same direction with the same speed of 30km/h. They are separated by 5km. What is the speed of the car moving in the opposite direction if it meet tje two cars at an interval of 4m

Answered by admin @ 25/08/2021

This is a question related to relative motion, here is the answer :-
let the two cars moving in same direction be A and B and the third car be C.
let the velocity of C be 'u'.
so velocity of C with respect to B would be. u+30(as they are moving in opposite directions).

do the speed u+30 would be given by
5/(4÷60) = u+30
5×60/4= u+30
75 = u+30
hence u = 45 kmph

Hope this helps my friend.☺

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