Question

Throughout a time interval, while the speed of a particle increases as it moves along the \( \mathbf{x} \) axis,its velocity and acceleration might be: A. positive and negative, respectively B. negative and positive, respectively C. negative and negative, respectively D. negative and zero, respectively E. positive and zero, respectively 10. A particle moves on the \( x \) axis. When its acceleration is positive and increasing: I. its velocity must be positive II. its velocity must be hegative II. it must be slowing down V. it must be speeding up A. II only B. IV only C. I\&III only D. I only E. None of the above 11. A ball is in free fall. Its acceleration is: A. downward during both ascent and descent B. downward during ascent and upward during descent C. upward during ascent and downward during descent D. upward during both ascent and descent E. downward at all times except at the very top, when it is zero

          Throughout a time interval, while the speed of a particle increases as it moves along the \( \mathbf{x} \) axis,its velocity and acceleration might be:
A. positive and negative, respectively
B. negative and positive, respectively
C. negative and negative, respectively
D. negative and zero, respectively
E. positive and zero, respectively
10. A particle moves on the \( x \) axis. When its acceleration is positive and increasing:
I. its velocity must be positive
II. its velocity must be hegative
II. it must be slowing down
V. it must be speeding up
A. II only
B. IV only
C. I\&III only
D. I only
E. None of the above
11. A ball is in free fall. Its acceleration is:
A. downward during both ascent and descent
B. downward during ascent and upward during descent
C. upward during ascent and downward during descent
D. upward during both ascent and descent
E. downward at all times except at the very top, when it is zero

Throughout a time interval, while the speed of a particle increases as it moves along the 𝐱 axis,its velocity and acceleration might be:
A. positive and negative, respectively
B. negative and positive, respectively
C. negative and negative, respectively
D. negative and zero, respectively
E. positive and zero, respectively
10. A particle moves on the x axis. When its acceleration is positive and increasing:
I. its velocity must be positive
II. its velocity must be hegative
II. it must be slowing down
V. it must be speeding up
A. II only
B. IV only
C. I&III only
D. I only
E. None of the above
11. A ball is in free fall. Its acceleration is:
A. downward during both ascent and descent
B. downward during ascent and upward during descent
C. upward during ascent and downward during descent
D. upward during both ascent and descent
E. downward at all times except at the very top, when it is zero

Added by Tammy J.

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