3. Kinematics
Relative Motion — Quiz
Test your understanding of relative motion with 5 practice questions.
Practice Questions
Question 1
Which expression gives the velocity of object $A$ relative to object $B$?
Question 2
If two particles move with exactly the same velocity, what is their relative velocity?
Question 3
A train moves east at $20\ \text{m/s}$. A passenger walks east at $3\ \text{m/s}$ relative to the train. What is the passenger's velocity relative to the ground?
Question 4
A boat moves east at $5\ \text{m/s}$ relative to the water, and the water flows east at $2\ \text{m/s}$ relative to the ground. What is the boat's velocity relative to the ground?
Question 5
A person walks north at $2\ \text{m/s}$ on a platform moving east at $3\ \text{m/s}$. What is the magnitude of the person's velocity relative to the ground?