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Questions and Answers
Which type of linear motion has a constant velocity and zero acceleration?
Which type of linear motion has a constant velocity and zero acceleration?
- Uniform linear motion (correct)
- Uniform circular motion
- Non-uniform linear motion
- Non-uniform circular motion
What is the mathematical description of position x as it varies with time t for linear motion?
What is the mathematical description of position x as it varies with time t for linear motion?
- $x = v + at$
- $x = rac{1}{2}at^2$
- $x = vt$ (correct)
- $x = at^2$
According to Newton's first law of motion, what happens to objects that do not experience any net force?
According to Newton's first law of motion, what happens to objects that do not experience any net force?
- They accelerate indefinitely
- They move in a circular path
- They stop moving
- They continue to move in a straight line with constant velocity (correct)
What can cause an object to change the direction of its motion under everyday circumstances?
What can cause an object to change the direction of its motion under everyday circumstances?
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In linear motion, what is the type of motion exhibited by an athlete running a 100-meter dash along a straight track?
In linear motion, what is the type of motion exhibited by an athlete running a 100-meter dash along a straight track?
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Study Notes
Linear Motion
- Uniform motion has a constant velocity and zero acceleration.
- The mathematical description of position x as it varies with time t for linear motion is x(t) = x0 + vt, where x0 is the initial position and v is the velocity.
Newton's First Law of Motion
- Objects that do not experience any net force remain in their state of motion or rest.
Factors Affecting Motion
- Friction and air resistance can cause an object to change the direction of its motion under everyday circumstances.
Types of Linear Motion
- Rectilinear motion is the type of motion exhibited by an athlete running a 100-meter dash along a straight track.
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