AP Physics 1mediummcq1 pt
A 4.0 kg block on a frictionless surface is pulled by a 12 N force at an angle of 60° above the horizontal (cos 60° = 0.50). Its acceleration is
A.1.5 m/s²
B.3.0 m/s²
C.2.6 m/s²
D.0.75 m/s²
Explanation
Core Concept
Only the horizontal component accelerates it: a = (12 cos 60°)/4.0 = 6/4 = 1.5 m/s².
Correct Answer
A1.5 m/s²
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