If the speed of the body is lowered, then the viscous drag is [ ] a) Directly proportional to speed of the body b) Inversly proportional to speed of the body c) Equal to the speed of the body d) Both a and b The origin of all the forces except gravitational pull is called [ ]
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OPTION B
Inversly proportional to speed of the body
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b) Inversly proportional to speed of the body
When a body descends through a viscous fluid, the layer of fluid closest to the body moves with the ball, at the same velocity as the ball, whilst the layer of fluid further away remains at rest. The varying velocities are as a result of. Every slow-moving layer tries to stifle the fast-moving layer next to it. This struggle between opposing relative motions across distinct layers of fluid produces viscous force (also known as viscous drag), which tends to slow down the falling body's velocity. The value of viscous drag increases as the body's velocity increases.
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