Neco Model Questions Vol1 2022 Physics Question 4

Practice essay / theory question 4 from the 2022 Neco Model Questions Vol1 Physics examination. This question covers forces, friction, inclined plane, Newton's laws .

Neco Model Questions Vol1 2022 Physics Essay / Theory
Topics: forces friction inclined plane Newton's laws
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • essay

A block of mass 8 kg rests on a rough inclined plane that makes an angle of 25° with the horizontal. A rope pulls the block with a force of magnitude 50 N acting at 30° above the horizontal, as shown in the force diagram. The block is on the point of moving up the plane. Using the information given, answer the following:

Question Parts

( a )
State all the forces acting on the block and indicate their directions on the diagram.
( b )
Resolve the applied force of 50 N into components parallel and perpendicular to the plane. Show your working.
( c )
Write the equilibrium equation for forces parallel to the plane and use it to find the magnitude of the frictional force acting on the block.
( d )
Determine the coefficient of static friction between the block and the plane.
( e )
If the applied force is increased to 70 N (still at 30° above the horizontal), calculate the acceleration of the block up the plane.

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About This Question

This is Neco Model Questions Vol1 2022 Physics Question 4. It is one of the essay questions from the 2022 Neco Model Questions Vol1 Physics examination.

The question covers forces, friction, inclined plane, Newton's laws .

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