Statics is concerned with the study of objects at rest.

Question

BlackTom AI · Accepted Answer

Statics deals with bodies in equilibrium: the net force and net moment on the body are zero (ΣF = 0 and ΣM = 0). This is the primary defining concept.

1. Relevant knowledge points and concepts
- Newton’s First Law: if the net force on a body is zero, the body remains at rest or moves with constant velocity.  
- Definition of statics in engineering/mechanics: the branch concerned with analysis of forces on bodies in equilibrium (commonly objects at rest).  
- Equilibrium conditions: ΣFx = 0, ΣFy = 0, ΣM = 0 for rigid bodies in plane statics.

2. Step-by-step reasoning
- By Newton’s First Law, zero net force implies no acceleration. Statics applies when acceleration is zero.  
- When analyzing a stationary beam, truss, or supported body, we set ΣF = 0 and ΣM = 0 to solve for unknown reactions and internal forces. These equilibrium equations are the core procedures of statics.  
- Example (symbolic): For a beam with vertical loads and supports, ΣFy = RA + RB − Σloads = 0; ΣM_aboutA = RB·L − Σ(moment of loads) = 0. Solving these yields support reactions while the body remains at rest.

3. Calculational steps (symbolic)
- Write ΣFx = 0, ΣFy = 0, ΣM = 0.  
- Substitute known loads and solve linear equations for unknown reactions.  
- Verify all equilibrium equations hold (consistency check).

4. Why the correct answer is correct
- Because statics specifically addresses conditions of equilibrium (most typically objects at rest), using the equilibrium equations derived from Newton’s laws to determine forces and moments.

5. Why the other option (False) is incorrect
- Declaring the statement False would imply statics is not about objects at rest, which contradicts standard definitions; dynamics (not statics) handles accelerating bodies.

6. Conclusion
The statement is True: statics is concerned with the study of objects at rest (more generally, bodies in equilibrium). This matches the provided answer.

Statics is concerned with the study of objects at rest.判断题

类似问题

In Kepler's Harmonic Law, $P^2=a^3$, the $a$ is _. In Newton's Law $F=ma$, the $a$ is _.

Isaac Newton made significant contributions to which of the following topics?

You own a bond that pays $64 in interest annually. The face value is $1,000 and the current market price is $1,021.61. The bond matures in 11 years. What is the yield to maturity?

Which of the following statements is CORRECT?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单