Podcast
Questions and Answers
In the context of relative motion, if vBA is the velocity of frame B relative to frame A, what does vBA = 0 imply?
In the context of relative motion, if vBA is the velocity of frame B relative to frame A, what does vBA = 0 imply?
- Frame B is stationary with respect to frame A. (correct)
- Frame A and Frame B have opposite velocities.
- Frame A is stationary with respect to frame B.
- Frame A and Frame B have equal velocities.
For a ball thrown vertically upwards with an initial velocity of 30 m/s, what is the maximum height it reaches?
For a ball thrown vertically upwards with an initial velocity of 30 m/s, what is the maximum height it reaches?
- $45$ m (correct)
- $30$ m
- $60$ m
- $15$ m
In projectile motion, what is the equation for the range (R) of an object projected at an angle A to the horizontal?
In projectile motion, what is the equation for the range (R) of an object projected at an angle A to the horizontal?
- $R = \frac{u}{g}\sin(A)$
- $R = \frac{u}{g}\cos(A)$
- $R = u \cdot g \cdot A$
- $R = \frac{u^2}{g}\sin(2A)$ (correct)
For the position function x(t) = $2t^2 + 4t + 3$m, what does this function represent?
For the position function x(t) = $2t^2 + 4t + 3$m, what does this function represent?
What is the displacement of a train between t1 = 1.0 s and t2 = 3.0 s if its position function is x = 10 + 3t^2?
What is the displacement of a train between t1 = 1.0 s and t2 = 3.0 s if its position function is x = 10 + 3t^2?
For an object in uniform circular motion, what is true about its acceleration?
For an object in uniform circular motion, what is true about its acceleration?
What does it mean when the velocity-time graph for an object is a horizontal line at zero velocity?
What does it mean when the velocity-time graph for an object is a horizontal line at zero velocity?
If a ball is thrown vertically upwards, what can be said about its velocity at the maximum height?
If a ball is thrown vertically upwards, what can be said about its velocity at the maximum height?
What does the term vPB represent in the context of relative motion?
What does the term vPB represent in the context of relative motion?
