Neco Model Questions Vol1 2018 Physics Question 4

Practice essay / theory question 4 from the 2018 Neco Model Questions Vol1 Physics examination. This question covers Forces .

Neco Model Questions Vol1 2018 Physics Essay / Theory
Topic: Forces
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2018 • PHYSICS • essay

A uniform block of mass 2.0 kg rests on a smooth inclined plane that makes an angle of 30° with the horizontal. The coefficient of static friction between the block and the plane is μ_s.

Question Parts

( a )
If the block remains at rest on the incline, calculate the minimum value of μ_s required to prevent sliding.
( b )
A horizontal force of 20 N is now applied to the block (directed up the incline). Determine the magnitude of the block’s acceleration up the plane.
( c )
The block is released from rest at the top of a 5.0‑m long incline (same 30°) while the 20 N horizontal force continues to act. Find the speed of the block when it reaches the bottom of the incline.

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About This Question

This is Neco Model Questions Vol1 2018 Physics Question 4. It is one of the essay questions from the 2018 Neco Model Questions Vol1 Physics examination.

The question covers Forces .

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