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2 years ago

9

Friction always acts and in the direction of the motion of an object

1 answer:

Fed [463]2 years ago

5 0

Answer:

Friction force always acts tangent to the surface at points of contact. Friction force acts opposite to the direction of motion. There are 2 types of friction: Static friction: If the two surfaces in contact do not move relative to each other, one has static friction.

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Prove the correctness of this equation s=vt + 1/2at

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The formula is dimensionally correct.

Explanation:

Given

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Required

Prove its correctness

Write out the dimension of each:

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