Physics - NLM Question with Solution | TestHub
PhysicsNLMFrictionMedium2 minQB
PhysicsMediumsingle choice
In a situation the contact force by a rough horizontal surface on a body placed on it has constant magnitude. If the angle between this force and the vertical is decreased, the frictional force between the surface and the body will:
Options:
Answer:
B
Solution:
The contact force is the resultant of the normal reaction and friction; the friction is its horizontal component.
With the magnitude fixed, reducing the angle with the vertical reduces the horizontal component, so the friction decreases.
Option B.
Subject:PhysicsTopic:NLMSubtopic:Friction
⏱ 2mℹ️ Source: QB
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