Question

A tennis ball is thrown upward at an angle from point A (see Figure 9.1). It follows a parabolic trajectory and hits the ground at point D. At the instant shown, the ball is at point B. Point C represents the highest position of the ball above the ground. While in flight, how do the x and y components of the velocity vector of the ball compare at the points B and C? Group of answer choices The velocity components are non-zero at B and zero at C. The x components are the same; the y component at C is zero m/s. The x components are the same; the y component has a larger magnitude at C than at B. The x component is larger at C than at B; the y component at B points up while at C, it points downward. The x component is larger at B than at C; the y component at B points down while at C, it points upward.

          A tennis ball is thrown upward at an angle from
point A (see
Figure 9.1).  It follows a parabolic trajectory and hits the
ground at point D.  At the
instant shown, the ball is at point B. 
Point C represents
the highest position of the ball above the ground. While in flight,
how do the x and y components
of the velocity vector of the ball compare at the
points B and C?
Group of answer choices
The velocity components are non-zero at B and zero at C.
The x components are the same; the y component at C is zero
m/s.
The x components are the same; the y component has a larger
magnitude at C than at B.
The x component is larger at C than at B; the y component at B
points up while at C, it points downward.
The x component is larger at B than at C; the y component at B
points down while at C, it points upward.

Added by Shirley G.

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