A body of mass 36kg falls through a viscous liquid which offers a drag force of 260N on the body. The upthrust on the body at terminal velocity is?
[g = 10ms\(^2\)]
a
100N
b
620N
c
50N
d
310N
Explanation
Correct Option
aVideo Explanation
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Jayboy12345
1 year ago
Weight= upthrust + Viscous drag
Weight=mg=36 ×10=360
weight-Viscous drag=Upthrust
360-260=100
De sage
1 year ago
F=ma
F=260N
m= 36kg
a=?
260/36=a
a= 7.22m/s²
w= m{g-a}
w= 36{10-7.222}
w=36×2.778
w=100.0N
