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Physics Lesson 3.13.2 - Case 1 - Reference frame is at rest and the object is moving at constant velocity
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Welcome to our Physics lesson on Case 1 - Reference frame is at rest and the object is moving at constant velocity, this is the second lesson of our suite of physics lessons covering the topic of Relative Motion, you can find links to the other lessons within this tutorial and access additional physics learning resources below this lesson.
Case 1 - Reference frame is at rest and the object is moving at constant velocity
This includes the situations described in Uniform Motion explained in the previous tutorials. Thus, if the initial position of the object is x⃗0 units to the reference point and the object is moving at constant velocity v⃗, the equation of motion which gives the position x⃗ of the object at any instant t, is
Equation 1
x⃗(t) = x⃗0 + v⃗ × tFor example, if a ball is initially 2m on the right of a tree and it rolls at 3m/s due right, its position after 4 seconds in respect to the tree will be
= 2m + 12 m
= 14 m
on the right of the tree (here, the direction from left to right is considered as positive). It is obvious the displacement of the ball is x⃗(4) - x⃗0 = 14 m-2 m = 12 m.
Look at the figure below:
You have reach the end of Physics lesson 3.13.2 Case 1 - Reference frame is at rest and the object is moving at constant velocity. There are 7 lessons in this physics tutorial covering Relative Motion, you can access all the lessons from this tutorial below.
More Relative Motion Lessons and Learning Resources
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Enjoy the "Case 1 - Reference frame is at rest and the object is moving at constant velocity" physics lesson? People who liked the "Relative Motion lesson found the following resources useful:
- Case One Feedback. Helps other - Leave a rating for this case one (see below)
- Kinematics Physics tutorial: Relative Motion. Read the Relative Motion physics tutorial and build your physics knowledge of Kinematics
- Kinematics Revision Notes: Relative Motion. Print the notes so you can revise the key points covered in the physics tutorial for Relative Motion
- Kinematics Practice Questions: Relative Motion. Test and improve your knowledge of Relative Motion with example questins and answers
- Check your calculations for Kinematics questions with our excellent Kinematics calculators which contain full equations and calculations clearly displayed line by line. See the Kinematics Calculators by iCalculator™ below.
- Continuing learning kinematics - read our next physics tutorial: Motion. Types of Motion
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