Question 5 of 34 Sapling Learning The siedgehammer shown consists of a head (wit
ID: 1583625 • Letter: Q
Question
Question 5 of 34 Sapling Learning The siedgehammer shown consists of a head (with a high mass) and a handle (with a much, much lower mass). Points V, W, X Y, and Z represent possible axes of rotation which are and evenly spaced. Point Wis at the exact middle of the head, and point X is at the exact middle of the handle. Treating the head of the hammer as a point mass and the handle as a straight, thin rod, rank the rotational inertia (!) of the hammer about the various axes cular to the screen greatestI smallest
Explanation / Answer
Clearly W will be the smallest and Z the largest.
At V the head has the same MoI as at X; but at V, the handle has a higher MoI.
At Y the head's MoI is almost as great as at Z.
So the ranking, greatest to smallest, is
Z, Y, V, X, W.
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