A block slides down a smooth 30 degree incline. Its acceleration? (g = 10 m/s²)
A10 m/s²
B5 m/s²
C8.7 m/s²
D2.5 m/s²
Answer & Solution
Correct answer: B. 5 m/s²
With no friction a = g sin30 = 10 x 0.5 = 5 m/s².
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