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Grade 11Mechanics

Please answer with correct explanation I am waiting thanks

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Profile image of Chandan Kumar
8 Years agoGrade 11
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1 Answer

Profile image of venkat
ApprovedApproved Tutor Answer8 Years ago
Given,
Velocity of water=v0
Rate of flow of water dv/dt=\mu
Density of water is 1gm/cm3
Even though the direction of velocity changes its magnitude remains constant.
Force F=ma
F=dp/dt
F=d(mv0)/dt
F=v0​(dm/dt)
F=v0​{d(\rhov)/dt} [\because​mass = density*volume]
F=v0{dv/dt}
\thereforeF=\mu​v0