A heavy ball with a weight of 110 N is hung from the ceiling of a lecture hall on a 4.8-m-long rope. The ball is pulled to one side and released to swing as a pendulum, reaching a speed of 5.2 m/s as it passes through the lowest point.
What is the tension in the rope at that point?
Physics Hanging Ball Question!?
2018-03-27 9:21 pm
回答 (2)
2018-03-27 9:47 pm
✔ 最佳答案
T = mg + mv^2/r= 110N + (11.22 kg)(5.2 m/s)^2 / (4.8 m)
= ABOUT 122N but use a calculator.
2018-03-27 11:07 pm
=(110+(11.22)*(5.2)^2)/4.2 = 98.426
收錄日期: 2021-04-24 00:59:19
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