Question 14
Original source text (the original panel preserves all diagram labels, tables and choices):
Two smooth tracks of equal length have “bumps” of the same curvature where
ball X travels up and ball Y travels down with the same maximum change in
height.
X
Y
If the two balls start simultaneously with the same initial speed, which ball will
complete the journey first?
A. Ball X will complete the journey first.
B. Ball Y will complete the journey first.
C. Both balls will complete the journey at the same time.
D. Impossible to tell since the masses of ball X and Y are unknown.
Two smooth tracks of equal length have “bumps” of the same curvature where
ball X travels up and ball Y travels down with the same maximum change in
height.
X
Y
If the two balls start simultaneously with the same initial speed, which ball will
complete the journey first?
A. Ball X will complete the journey first.
B. Ball Y will complete the journey first.
C. Both balls will complete the journey at the same time.
D. Impossible to tell since the masses of ball X and Y are unknown.