Question 1: What value does this vernier-scale instrument read? Question 2: In t

Question

Question 1: What value does this vernier-scale instrument read? Question 2: In the Rotational Dynamics lab, the weight is allowed to fall then rise again. For what reason? Question 3: The two objects shown have the same mass M and radius R. One is a hollow ring, with essentially all its mass at radius R. The other is a uniform solid disk. Which, if either, would be easier to linearly accelerate (that is, to get moving in some direction but without involving any rotation)? Which, if either, would be easier to angularly accelerate (that is, to get rotating, without any overall motion in a particular direction)? Briefly explain your answers. Question4: You are experimentally determining a quantity (such as a moment of inertia) involving the multiplication and/or division of 11 independent contributing experimental values (such as masses, distances, etc.). The percent uncertainty for one of the contributing values is 1% and for the ten others it is 0.1%. What is the overall percent uncertainty in the quantity?

Explanation / Answer

least count of vernier is 0.01 8th divission matches and zero'th division is in between 1 and 2 hence reading is 2.1 +8*0.01 =2.18 units

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