A fish moving up in water (μ = 4/3) with a speed of 4 cm/s observes a bird coming directly towards itself with a speed of 12 cm/s. Find the actual speed of the bird with respect to a stationary observer on the ground.
A fish moving up in water (μ = 4/3) with a speed of 4 cm/s observes a bird coming directly towards itself with a speed of 12 cm/s. Find the actual speed of the bird with respect to a stationary observer on the ground.
Option 1 -
5 cm/s
Option 2 -
6 cm/s
Option 3 -
8 cm/s
Option 4 -
9 cm/s
Asked by Shiksha User
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1 Answer
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Correct Option - 2
Detailed Solution:Velocity of bird = v
Velocity w.r.t. observer in water = (4/3)v; 12 = 4 + (3/4)v ⇒ v = 6 cm/s
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