new new new new (id: 27a827d1b)

本题目来源于试卷: new new new new，类别为 IB物理学

[填空题]
A horizontal force of 210 N is exerted on a 2.0-kg discus as it rm1qeziy2;;n63n/ tkpb(i hh l bq g1q4ota/5r; pn nvg.rdtes uniformly in a horizontal circle (at ar rn;rnd v/pg5.m’s length) of radius 0.90 m. Calculate the speed of the discus.   

参考答案: 9.7±2%


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