Question

5. The component of contact force in the direction parallel to the surface
of contact of two bodies and perpendicular to the surface are called
(a) normal reaction, frictional force (b) frictional force, normal reaction
(c) centripetal force, centrifugal force (d) centrifugal force, centripetal
force​

Answer 1

Answer:

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Explanation:

1

Answer 2

The correct answer will be option b.

• The frictional force acts opposite to the direction of relative motion.

For example, if a body is trying to move in the forward direction, the surface will apply a frictional force in the backward direction.

• Also, it acts where the bodies are in contact with each other. If the contact between body and surface breaks the frictional force disappears.

• The normal force always acts perpendicular at the point of contact.