本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified
[问答题]
Mammals that depend on being able to run fast have slender lower legs wv p1aksi9l kdn nsh,) h417d2jith fles /ed-us y0-gacz3 f txfz 5(+3o:kldnsh and muscle concentrated high, close to the body (Fig. 8–34). On the basis of rotationale:oag c0u5+ sn -sxfdz3d3-fz(k/y lt dynamics, explain why this distribution of mass is advantageous.
参考答案: The legs have a lower moment of inertia
when the leg mass is concentrated next to the body. That means the legs will require less torque
to have a given angular acceleration, or, alternatively, a higher angular
acceleration can be developed. Thus the
animal can run fast.
本题详细解析:
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Post time 2025-2-18 20:00:22