Two cars A and B are moving in opposite directions with the velocity o

1.	Two cars A and B are moving in opposite directions with the velocity of 20m/s and 6m/s respectively Calculate the relative of car A with respect to car B If they move in the same velocity what will be the relative velocity of CarA with respect to Car B
Answer» Answer: Here also LET US assume the right direction is positive, then the LEFT direction will be negative. Given: v A = −15ms−1 , v B = 20ms−1 Relative velocity of B w.r.t A: v B / A = v B − v A = 20− (−15)= 35ms −1 (Positive sign indicates that this relative velocity is in right direction.) Relative velocity of A w.r.t B: v A / B = v A − v B = −15− 20= −35ms −1 (Negative sign indicates that this relative velocity is in backward direction.) Here the separation between A and B is INCREASING with time, HENCE the velocity of separation is 35ms −1 .

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

Answer»

Answer:

Here also LET US assume the right direction is positive, then the LEFT direction will be negative.

Given:

−15ms−1

20ms−1

Relative velocity of B w.r.t A:

−

20−

(−15)=

35ms

−1

(Positive sign indicates that this relative velocity is in right direction.)

Relative velocity of A w.r.t B:

−

−15−

20=

−35ms

−1

(Negative sign indicates that this relative velocity is in backward direction.)

Here the separation between A and B is INCREASING with time, HENCE the velocity of separation is

35ms

−1