Neco 2020 Physics Question 15

Practice objective / multiple choice question 15 from the 2020 Neco Physics examination.

Neco 2020 Physics Objective / Multiple Choice Medium Difficulty
Question 15 NECO • 2020 • PHYSICS • objective

A block of mass \(5.0\ \text{kg}\) rests on a rough inclined plane that makes an angle of \(30^{\circ}\) with the horizontal. The coefficients of static and kinetic friction between the block and the plane are \(\mu_{s}=0.25\) and \(\mu_{k}=0.20\) respectively. A horizontal force of \(50\ \text{N}\) is applied to the block, directed up the incline.\n(i) Determine whether the block will start moving up the plane.\n(ii) If it does move, find its acceleration up the plane in \(\text{m·s}^{-2}\) (to two decimal places).

Answer Options

Correct Answer A. The block does not move; acceleration = 0 m·s⁻²
B. The block moves up the plane; acceleration = 1.75 m·s⁻²
C. The block moves down the plane; acceleration = 0.60 m·s⁻²
D. The block does not move; acceleration = 0.50 m·s⁻²
Correct Answer
A
Correct Option:
The block does not move; acceleration = 0 m·s⁻²

About This Question

This is Neco 2020 Physics Question 15. It is one of the objective questions from the 2020 Neco Physics examination.

Difficulty level: Medium .

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