Question

Two cars A and B are moving in opposite directions with the velocity of 20m/s and 6 m/s respectively. Calculate the relative velocity of car A with respect to car B. If they move in the same velocity,what will be the relative velocity of car A with respect to car B

Answer 1

Answer:

Relative velocity --> 20mph-6mph = 14 mph.

If we move with the same velocity ( assume x mph ) then their relative velocity---> x mph - x mph = 0 mph

Answer 2

The Relative Velocity in a). is 26m/s and in b). is 0m/s.

Given:-

Velocity of car A (Va) = 20m/s

Velocity of car B (Vb) = -6m/s

To Find:-

a). Relative Velocity of car A with respect to car B.

b). Relative Velocity of car A with respect to car B, when Va = Vb.

Solution:-

To find out the Relative Velocity of car A and car B in both cases, we need to follow these simple steps which includes.

a). Velocity of car A (Va) = 20m/s

Velocity of car B (Vb) = -6m/s

To find the Relative Velocity, we should apply the formula as,

Relative Velocity of car A and car B = Vab

Vab = Va - Vb

Vab = 20 - (-6)

Vab = 20+6

Vab = 26m/s

b). if Velocity of car A = Velocity of car B

Va = Vb

In this case,

Relative Velocity = Vab

Vab = Va - Vb

(since Va = Vb)

Vab = 0m/s

Hence, the Relative Velocity in a). is 26m/s and in b). is 0m/s.

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