The displacement-time graphs of two particles
A and B are straight lines making angles of 30°
and 45° respectively with the time axis. If the
velocity of A is vand that of B is vr, the
value of v/v, is
(1) 1/2 (2) 1/13 (3) 13 (4) 1/3
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Answer:1/root 3
Explanation:the the velocitiy is nothing but the slope of s-t graph.here its straight line hence the velocities bear ratio tan30/tan45=1/root3
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