Question 118

Two cars are moving with speeds $$v1$$ and $$v2$$ towards a crossing along two roads. If their distance from the crossing be 40 m and 50 m at an instant of time, then they do not collide, if their speeds are such that

Solution

they will collide if time to reach the crossing is same.

it is the case when

time taken by 1st car = time taken by 2nd car.

40/v1 = 50/v2

v1/v2 = 4/5

but condition not to collide is v1/v2 $$\neq$$ 4/5.

so the answer is option A.

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