Using the concept of relative motion, answer the following question. A swimmer swims (with respect to water) perpendicular to the current with acceleration a = 2t (where t is time) starting from rest form the origin O at t = 0. Velocity of the river with respect to ground is given by v0 . Width of the river is d.
The equation of trajectory of the path followed by the swimmer
A
y=x33v30
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B
y=x22v20
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C
y=xv0
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D
y=√xv0
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Solution
The correct option is Ay=x33v30 We have x=v0t⇒t=xv0⋯(1)y=t33⋯(2) (1) in (2) gives y=x33v30