Practice - Key Concepts & Definitions
Practice Questions
Test your understanding with targeted questions
What is the SI unit of force?
💡 Hint: Think of the standard unit of measurement for force.
Can you name one type of contact force?
💡 Hint: What forces require a physical connection?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the definition of force?
💡 Hint: Think about what can change the motion of an object.
True or False: Torque is calculated as Force divided by distance.
💡 Hint: Remember how torque relates to force and pivot points.
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Challenge Problems
Push your limits with advanced challenges
A seesaw with a 25 kg child on one end is balanced with a 30 kg child sitting 3 meters away from the pivot. How far from the pivot must the 25 kg child sit to keep the seesaw level?
💡 Hint: Keep the moments on both sides balanced.
A ladder rests against a wall making an angle of 60 degrees with the ground. If the ladder's CG is 2 meters from the bottom, find the force acting on the ladder at both ends if the ladder weighs 100 N.
💡 Hint: Consider moments about one end of the ladder to determine the force at the other.
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Reference links
Supplementary resources to enhance your learning experience.