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Question

A particle is moving with velocity V=4x^i+4y^j, then general equation for path of particle is

A
x=cy
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B
y=cx2
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C
x2y2=c2
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D
x2+y2=c2
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Solution

The correct option is A x=cy
Given, V=4x^i+4y^j
differentiation w.r.t. x and then y,
Vx=dxdt=4x
Vy=dydt=4y
So, dxdy=xy .....(1)

integrationg above equation,
dxxdyy=0logexlogey=c
xy=c
x=cy
Hence, option A is correct answer.

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