Give the Eqn for the relative velocity of two cars A and B
a. In Opp direction
b. In same direction
Plzz answer fast it's kinda urgent.......
Answers
If they are moving on the same straight line, the relative velocity of one with respect to the other will be the difference in their speeds, providing you use plus and minus to signify the direction of travel. So if one car is travelling towards the west, and we call that +v, and the other is travelling in the opposite direction (towards the east) and we call that -v, then if you subtract the second speed from the first you get v - (-v), which is v + v which is 2v.
Note that if they are travelling towards each other OR away from each other, the relative speed is still 2v, but in one case they will be getting closer together at a speed of 2v and in the other case they will be getting further apart at a speed of 2v.
Note also that if they are travelling in the same direction, let’s say both going west, then we have (+v) - (+v) = 0 as the relative speed, so they never catch each other, but stay a fixed distance apart.
If they are both going east, we get (-v) - (-v) =0, same result.
Answer:
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