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Two cars A and B are running with same speed v .A along east and B towards north .Car A is at origin O and B is at distance d as shown .After how much time , the distance between cars is minimum and what us the minimum distance?

Two cars A and B are running with same speed v .A along east and B towards north .Car A is at origin O and B is at distance d as shown .After how much time  , the distance between cars is minimum and what us the minimum distance?

Grade:12th pass

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

Kindly post the image for the position of cars as mentioned

Regards
Khimraj
3007 Points
one year ago
Let distance covered by A be S1
Let distance covered by B be S2
B will catch A when S1 = S2
S = ut + 1/2 * a * t^2
Therefore, 
40t + (1/2 * 0 * t^2) = 0t + 1/2 * 4 * t^2
40t = 2t^2
20t = t^2
Therefore, t = 20

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