A bird is tossing (flying to and fro) between | vedclass

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Question

(A) The total time taken for the two cars to meet is given by the formula:$T = \frac{	ext{Total distance}}{	ext{Relative velocity of the cars}}$Give

Vedclass · Accepted Answer

$14400$

Vedclass · Answer

(A) The total time taken for the two cars to meet is given by the formula:$T = \frac{	ext{Total distance}}{	ext{Relative velocity of the cars}}$Given, distance $d = 36 	ext{ km}$, speed of car $1$ $v_1 = 54 	ext{ kmh}^{-1}$, and speed of car $2$ $v_2 = 36 	ext{ kmh}^{-1}$.Since they are moving towards each other, relative velocity $v_{rel} = v_1 + v_2 = 54 + 36 = 90 	ext{ kmh}^{-1}$.$T = \frac{36}{90} = 0.4 	ext{ h}$.The bird flies continuously at a speed of $v_b = 36 	ext{ kmh}^{-1}$ for the entire duration $T$.Total distance covered by the bird $= v_b 	imes T = 36 	imes 0.4 = 14.4 	ext{ km}$.Converting to meters: $14.4 	imes 1000 = 14400 	ext{ m}$.

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