Practice First Law (5.1) - Rigid Body Motion in the Plane - Engineering Mechanics
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First Law

Practice - First Law

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Practice Questions

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Question 1 Easy

Define linear momentum.

💡 Hint: Think about what happens when a body moves.

Question 2 Easy

What happens to the momentum of a body if no external forces act on it?

💡 Hint: Recall Newton's first law of motion.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does Euler's First Law state?

The rate of change of linear momentum is proportional to the net external force.
The acceleration of a body is always zero.
All forces acting on a rigid body cancel out.

💡 Hint: Remember the relationship between force and momentum.

Question 2

True or False: If no net external force acts on a rigid body, its momentum will change.

True
False

💡 Hint: Think about the implications of Newton's first law.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A boat sails across a river with a current. Analyze the forces affecting its linear momentum and how the result alters its trajectory.

💡 Hint: Consider both the direction of the current and the force applied by the boat's motor.

Challenge 2 Hard

A figure skater spins with arms extended and then pulls them in. Discuss how this affects angular momentum.

💡 Hint: Remember how changes in shape can affect speed during rotation.

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Reference links

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