Neco 2024 Physics Question 10

Practice objective / multiple choice question 10 from the 2024 Neco Physics examination.

Neco 2024 Physics Objective / Multiple Choice Medium Difficulty
Question 10 NECO • 2024 • PHYSICS • objective

A block of mass \(10\ \text{kg}\) rests on a rough inclined plane that makes an angle of \(30^{\circ}\) with the horizontal. The coefficients of static and kinetic friction are \(\mu_s = 0.20\) and \(\mu_k = 0.15\) respectively. A horizontal force \(F\) is applied to the block (the force is parallel to the horizontal, not along the plane). (a) Determine the minimum magnitude of \(F\) required to start moving the block up the incline. (b) Once the block is moving, compute the work done by this horizontal force in moving the block \(5.0\ \text{m}\) up the incline.

Answer Options

A. (a) 78 \\text{ N}, \\; (b) 3.2\\times10^{2} \\text{ J}
B. (a) 80 \\text{ N}, \\; (b) 4.0\\times10^{2} \\text{ J}
Correct Answer C. (a) 86 \text{ N}, \; (b) 3.7\times10^{2} \text{ J}
D. (a) 92 \\text{ N}, \\; (b) 4.1\\times10^{2} \\text{ J}
Correct Answer
C
Correct Option:
(a) 86 \text{ N}, \; (b) 3.7\times10^{2} \text{ J}

About This Question

This is Neco 2024 Physics Question 10. It is one of the objective questions from the 2024 Neco Physics examination.

Difficulty level: Medium .

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