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Questions and Answers
Which vector represents the position of a mobile at a given time t?
Which vector represents the position of a mobile at a given time t?
- $Vav = M1M2$
- $r(t) = x(t)i + y(t)j + z(t)k$ (correct)
- $Vav = \frac{M1M2}{t2-t1}$
- $Vav = \frac{M1M2}{t2+t1}$
What is the trajectory of a mobile called if it is not a straight line?
What is the trajectory of a mobile called if it is not a straight line?
- Rectilinear
- Average velocity
- Curvilinear (correct)
- Displacement
What is the displacement vector?
What is the displacement vector?
- The vector that relates two distant positions of the trajectory
- The vector that relates two neighboring positions of the trajectory (correct)
- The vector that relates two positions at the same time
- The vector that relates two positions at different times
What is the average velocity vector defined as?
What is the average velocity vector defined as?
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What is the instantaneous velocity vector?
What is the instantaneous velocity vector?
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