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If an object just begins to slide on a surface inclined at 30º to the horizontal,the coefficient of friction is?

A. √3
B. \(\frac{√3}{2}\)
C. \(\frac{1}{√2}\)
D. \(\frac{1}{√3}\)

View Answer & Discuss (4) JAMB 2022

A 400 N box is being pushed across a level floor at a constant speed by a force P of 100 N at an angle of 30.0° to the horizontal, as shown in the the diagram below. What is the coefficient of kinetic friction between the box and the floor?

A. 0.19
B. 0.24
C. 0.40
D. 0.22

View Answer & Discuss (23) JAMB 2023

The friction due to air mass can be reduced by

A. streaming
B. lubricating
C. propeller
D. polishing

View Answer & Discuss JAMB 2024

The tangential force acting on an object that opposes it from sliding freely on the adjacent surface is called

A. Normal force
B. Friction force
C. Weight
D. Upthrust

View Answer & Discuss (3) JAMB 2024

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