SUMMARY
The measurement of work in joules is defined by the equation W = Force x Displacement. In the case presented, applying a force of 20 Newtons to a chair that does not move results in zero joules of work, as displacement is zero. Therefore, the correct answer to the homework question is option c: zero joules.
PREREQUISITES
- Understanding of Newton's laws of motion
- Familiarity with the concept of force
- Basic knowledge of work and energy principles
- Ability to apply mathematical equations in physics
NEXT STEPS
- Study the relationship between force, displacement, and work in physics
- Learn about energy transfer and conservation laws
- Explore examples of work done in various physical scenarios
- Investigate the implications of non-zero displacement in work calculations
USEFUL FOR
Students studying physics, educators teaching mechanics, and anyone seeking to understand the fundamental principles of work and energy in physical systems.