PHYSICS

JAMB 2015 - Question 49

Physics 2015 JAMB Past Questions - Question 49: a body of mass 36kg falls through a viscous fluid which offers a drag force of 260n on the body .the upthrust on the body at terminal velocity is

Choose the correct answers from the options given.
a body of mass 36kg falls through a viscous fluid which offers a drag force of 260n on the body .the upthrust on the body at terminal velocity is
A:
B:
C:
D:
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Correct Answer

C

Explanation

At terminal velocity, the drag force acting on the body is equal in magnitude and opposite in direction to the upthrust force.

Given:
Mass of the body (m) = 36 kg
Drag force (F_drag) = 260 N

At terminal velocity, the net force acting on the body is zero. Therefore, the upthrust force (F_upthrust) is equal in magnitude to the drag force:

F_upthrust = F_drag
F_upthrust = 260 N

So, the upthrust on the body at terminal velocity is 260 N.

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