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? 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?

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?

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 Kevin B.

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