Physics Topic Test #5 — Newton's Laws & Mechanics 30 questions  |  1 hour  |  +4 / −1 47:23
Section A — MCQ (Q1–25)
Section B — Numerical (Q26–30)
Question 12 of 30  |  Section A (MCQ, single correct)  |  Marks: +4 / −1  |  Time on this Q: 2:14
A block of mass 5 kg is placed on a rough horizontal surface (coefficient of kinetic friction μk = 0.3). A force of 25 N is applied to the block at an angle of 30° above the horizontal. Find the acceleration of the block. (Take g = 10 m/s²)

sin 30° = 0.5, cos 30° = 0.866

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