A particle is released on a smooth plane inclined at to the horizontal. Taking m/s, what is its acceleration down the slope?

Answer and explanation

Correct answer: D. 4.9 m/s

  1. Step 1: Resolve weight along the slope: component . Step 2. . **Answer: 4.9 m/s. Why not the others:** 8.5 m/s uses , the component perpendicular to the slope; 9.8 is free fall; 2.45 halves the right value.

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