1.

Two straight lines drawn on the same displacement time graph make angles 30° and 60° with time axis respectively in the figure.1. Which line represents greater velocity? 2. What is the ratio of the velocity of line A to the velocity of line B?

Answer»

1. B

2. \(\frac{V_A}{V_B}= \frac{tanθ_A}{tanθ_B} \)

\(\frac{tan 30°}{tan 60°} = \frac{\frac{1}{\sqrt{3}}}{\sqrt3} = 1:3\)



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