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gc textbook chapter 8 Rotational Motion (id: 6d240bc68)

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Post time 2025-2-18 20:00:22 | Show all posts |Read mode
本题目来源于试卷: gc textbook chapter 8 Rotational Motion,类别为 unclassified

[填空题]
Suppose David puts a 0.50-kg rock into a sling of length0;wvwqe5ps+d rpx5qt+, q z(q 1.5 cykv.h c30.5k 7 sza)gqaar/ vm and begins whirling the rock in a nearly horizontal circle above his head, accelerating it from rest to a rate ov. ak .0vcqcg7khays5/zra) 3f 120 rpm after 5.0 s. What is the torque required to achieve this feat, and where does the torque come from?    $m \cdot N$




参考答案: 2.8±2%


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