Neco Model Questions Vol1 2021 Physics Question 44

Practice objective / multiple choice question 44 from the 2021 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2021 Physics Objective / Multiple Choice Medium Difficulty
Question 44 NECO_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • objective

A 5.0 kg block rests on a rough inclined plane that makes an angle \(\theta\) with the horizontal. The coefficient of static friction between the block and the plane is \(\mu_{s}=0.40\). A horizontal push of 20 N is applied to the block, directed up the slope.\ (a) Will the block start moving up the plane? Justify your answer.\ (b) Keeping the same horizontal push, determine the greatest angle \(\theta_{\max}\) (in degrees, to the nearest degree) for which the block will still remain at rest.

Answer Options

A. (a) No, the block remains at rest. (b) θ_max ≈ 50°
Correct Answer B. (a) No, the block remains at rest. (b) θ_max ≈ 44°
C. (a) Yes, the block moves up the plane. (b) θ_max ≈ 38°
D. (a) Yes, the block slides down the plane. (b) θ_max ≈ 30°
Correct Answer
B
Correct Option:
(a) No, the block remains at rest. (b) θ_max ≈ 44°

About This Question

This is Neco Model Questions Vol1 2021 Physics Question 44. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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