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Physics Motion in a Straight Line Relative Motion MCQ (Single Correct)

The distance between two trucks moving towards each other is decreasing at the rate of

. If these trucks travel with same speeds in same direction the separation increases at the rate of . The velocity of the trucks are:

A
B
C
D
None of these

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Text Solution

Verified by Experts
The correct answer is:
B

According to the given equation

First case: Separation between the trucks decreases at the rate of due to the opposite motion of trucks towards each other-

… (i)

Second case: Separation between the trucks increases due to the opposite relative motion of trucks in the same direction-

… (ii)

From equation (i) and (ii), we get

By putting the value of in equation (i)

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