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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to the forces acting on a ball at rest?
💡 Hint: Think about what happens when you throw a ball.
Question 2
Easy
What is static friction's role in motion?
💡 Hint: Consider your experience pushing heavy objects.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
True or False: Force always acts in the direction of motion.
- True
- False
💡 Hint: Think about forces acting on objects even when they don't move.
Question 2
What type of friction keeps an object stationary until a force is applied?
- Kinetic Friction
- Static Friction
- Rolling Friction
💡 Hint: Consider pushing heavy objects that won’t move at first.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 5 kg block of wood is on a flat surface. The static friction coefficient is 0.4. What is the maximum force required to move the block?
💡 Hint: Remember, static friction adjusts up to its limit according to the coefficient.
Question 2
A car moves in a circle of radius 50 m at a speed of 20 m/s. Calculate the required centripetal force for a 1000 kg car.
💡 Hint: Centripetal force is often misunderstood; it's not a unique force, but results from existing ones.
Challenge and get performance evaluation