Neco 2019 Physics Question 37

Practice objective / multiple choice question 37 from the 2019 Neco Physics examination.

Neco 2019 Physics Objective / Multiple Choice Medium Difficulty

Question 37 NECO • 2019 • PHYSICS • objective

A 5.0‑kg block rests on a horizontal rough surface. The coefficients of static and kinetic friction are \(\mu_{s}=0.40\) and \(\mu_{k}=0.30\) respectively. A force \(P\) is applied at an angle of \(30^{\circ}\) above the horizontal. Determine (a) the minimum magnitude of \(P\) required to start the block moving, and (b) the acceleration of the block when \(P=60\,\text{N}\). Give your answers in newtons and metres per second squared respectively.

A. P_min = 29.4 N, a = 5.65 m\/s^2

Correct Answer B. P_min = 18.4 N, a = 9.25 m/s^2

C. P_min = 22.6 N, a = 7.45 m\/s^2

D. P_min = 14.5 N, a = 8.87 m\/s^2

Correct Answer

Correct Option:

P_min = 18.4 N, a = 9.25 m/s^2

This is Neco 2019 Physics Question 37. It is one of the objective questions from the 2019 Neco Physics examination.

Difficulty level: Medium .

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