JEE Main 2019 — Physics solution | Fundamenthol

JEE Main2019Physics

Q.

Two particles A, B are moving on two concentric circles of radii R₁ and R₂ with equal angular speed w. At t = 0, their positions and direction of motion are shown in the figure.

The relative velocity $v_{A} - v_{B}$ at $t = \frac{π}{2 ω}$ is given by

A
$ω (R_{2} - R_{1}) \hat{i}$
B
$ω (R_{1} - R_{2}) \hat{i}$
C
$- ω (R_{1} - R_{2}) \hat{i}$
D
$ω (R_{1} - R_{2}) \hat{i}$

Solution

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