At a given instant, $A$ is moving with velocity of $5\,m / s$ upwards. What is velocity of $B$ at the time
At a given instant, $A$ is moving with velocity of $5\,m / s$ upwards. What is velocity of $B$ at the time
- A
$15\,m / s \downarrow$
- B
$15\,m / s \uparrow$
- C
$5\,m / s \downarrow$
- D
$5\,m / s \uparrow$
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