alleryA block of mass 2 kg on a smooth incline at 30°. Acceleration down the incline (g = 10):
A2.5 m/s²
B5 m/s²
C10 m/s²
D20 m/s²
Answer & Solution
Correct answer: B. 5 m/s²
**Down the smooth incline:** a = g sin θ = 10 × sin 30° = 10 × 0.5 = 5 m/s².
Mass doesn't matter on smooth incline.
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