At a given instant, A is moving with velocity of 5,m / s upwards. velocity of B at time

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4-1.Newton's Laws of Motion

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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$5\,m / s \uparrow$

Solution

From constrained
$-5-5-5+v_B=0$
$v_B=15\,m / s \downarrow$

Standard 11

Physics

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