8. a baseball is hit upward and travels along a parabolic arc before it strikes the se
the following statements must be true?
it strikes the ground. which of
a.
the acceleration of the ball
decreases as the ball moves upward.
c. the acceleration of the ball is zero
m/s when the ball is at the highest
point in the arc.
d. the x-component of the velocity of
the ball is the same througout the
ball's flight
b.
the velocity of the ball is zero m/s
when the ball is at the highest point
in the arc.