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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a rigid body.
💡 Hint: Think about what happens to the distance between particles in a rigid body.
Question 2
Easy
What is the significance of the center of mass?
💡 Hint: Consider how it helps in calculating trajectories of complex bodies.
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
What is the center of mass?
- The point where mass is concentrated
- The geometric center
- The point where gravitational force acts
💡 Hint: Think about how you would balance a large object.
Question 2
True or False: Torque is the rotational analogue of linear force.
- True
- False
💡 Hint: Recall the formula linking torque with rotation and force.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Two bicycles are connected by a long rod at their centers. If one bike cycles at 5 m/s, what’s the effect on the rotational motion?
💡 Hint: Consider how speeds and distances combine in these setups.
Question 2
A disc is rolling down an incline without slipping. Calculate its rotational and translational speeds at any point.
💡 Hint: Settle down the relation between rolling motion and the center of mass.
Challenge and get performance evaluation