2 - Work
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the formula for work?
💡 Hint: Remember it includes the force and angle.
What is the SI unit of work?
💡 Hint: Think of newton and meter.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for work?
💡 Hint: Focus on the direction between force and displacement.
Is work done when carrying an object at a constant speed horizontally?
💡 Hint: Consider the direction of the force.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A car engine exerts a force of 4000 N to position the car over a distance of 50 m. Calculate the work done. If the force is applied at an angle of 30 degrees to the direction of movement, how does that change your calculation?
💡 Hint: Don't forget to calculate cos(30°)!
If a person lifts a 10 kg box to a height of 2 meters, calculate the work done against gravity. If the same box is pushed along a surface with no friction for the same height, how does the work done compare?
💡 Hint: Remember to use mgh for lift work.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.