Physics-Friction
NEET Physics Friction MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a diagram depicting a block sliding down an inclined plane. The forces acting on the block include gravitational force, normal force, and frictional force. Which label correctly identifies the direction and type of frictional force acting on the block as it slides down?
A
Down the plane, static friction
B
Up the plane, sliding friction
C
Perpendicular to the plane, kinetic friction
D
Along the plane, viscous drag
Correct Answer
Option B
Detailed Explanation
When a block slides down an inclined plane, the frictional force opposing the motion is kinetic or sliding friction and acts up the plane. According to the NCERT context, kinetic friction opposes relative motion between surfaces in contact.
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