Neco Model Questions Vol1 2020 Physics Question 8

Practice essay / theory question 8 from the 2020 Neco Model Questions Vol1 Physics examination. This question covers Dynamics, Friction, Inclined Plane .

Neco Model Questions Vol1 2020 Physics Essay / Theory
Topics: Dynamics Friction Inclined Plane
Question 8 NECO_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • essay

A 5.0 kg block rests on a rough inclined plane that makes an angle of \(30^{\circ}\) with the horizontal. The coefficient of static friction between the block and the plane is \(\mu_s\). The block is just about to start moving up the plane when a horizontal force \(F\) of 20 N is applied to the block (as shown in the diagram). Determine:

Question Parts

( a )
The minimum value of the coefficient of static friction \(\mu_s\).
( b )
If the coefficient of kinetic friction is \(\mu_k = 0.25\), find the acceleration of the block when the same horizontal force of 20 N is applied and the block moves up the plane.

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About This Question

This is Neco Model Questions Vol1 2020 Physics Question 8. It is one of the essay questions from the 2020 Neco Model Questions Vol1 Physics examination.

The question covers Dynamics, Friction, Inclined Plane .

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