Question

the component of contact force in the direction parallel to the surface of contact of two bodies and perpendicular to the surface are called ??
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Answer 1

Answer:

Explanation:

i dont know sorry

Answer 2

• Component of contact force in the direction parallel to the surface of contact of two bodies are called Friction Force.

• Component of contact force in the direction perpendicular to the surface are called Normal force.

Explanation:

• Friction force is force that opposes relative motion between systems in contact. One of the simpler characteristics of friction is that it is parallel to the contact surface between systems and always in a direction that opposes motion or attempted motion of the systems relative to each other.  
• Normal force always acts perpendicular to the contact surface. It can act counter to gravity or to any other force that pushes an object against a surface.