英文物理问题谁会答啊?帮帮忙

来源:百度知道 编辑:UC知道 时间:2024/07/07 18:49:04
1.Explain how it is possible for a force to produce a small torque, and how it is possible for a small force to produce a large torque.

2.Find the tension force in the cord supporting the meterstick for each part of the experiment. Explain how the first condition of equilibrium (1) is satisfied for the meterstick in each part of the experiment.

3.What is the condition for the static equilibrium of a rigid body?

1.torque=r叉乘F. If r and F are both small, the torque would be small.

2.I think this question needs a picture, so I can't understand it.

3. If there isn't any torque available to a rigid body, the augular momentum would be constant, which means the rigid body is in the condiction of the static equilibrium.