Waec Model Questions Vol1 2021 Physics Question 4

Practice essay / theory question 4 from the 2021 Waec Model Questions Vol1 Physics examination. This question covers Forces .

Waec Model Questions Vol1 2021 Physics Essay / Theory
Topic: Forces
Question 4 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • essay

A block of mass 5 kg rests on a rough inclined plane that makes an angle of 30° with the horizontal. The coefficient of static friction between the block and the plane is 0.30. A horizontal force of magnitude F is applied to the block as shown (the force acts horizontally to the right).

Question Parts

( a )
Determine the greatest value of the horizontal force F that can be applied without causing the block to move up the plane.
( b )
If a horizontal force of 20 N is applied, state whether the block will move up the plane, down the plane, or remain at rest. Justify your answer.
( c )
Assuming the block does move, find the magnitude and direction of the kinetic frictional force acting on the block.

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About This Question

This is Waec Model Questions Vol1 2021 Physics Question 4. It is one of the essay questions from the 2021 Waec Model Questions Vol1 Physics examination.

The question covers Forces .

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