Question

Two cars A and B are moving with equal speed v .A is moving along north while B is moving along east .then magnitude of speed of A with respect to B will be​

Answer 1

this type question belong a only small think not a rough

So, answer is 2v

Answer 2

Given,

Speed of car A = v

Speed of car B = v

To find,

The magnitude of the speed of A with respect to B

Solution

The velocity of car A (vA) = vj since it is moving with a speed of v in the north direction.

The velocity of car B (vB) = vi since it is moving with a speed of v in the east direction.

Thus, vA-vB = vj-vi

= $\sqrt{2}$v

Hence, the magnitude of A with respect to B will be $\sqrt{2}$v.