A Tennis Ball Is Thrown Upward at an Angle from Point

question 22

Multiple Choice

A tennis ball is thrown upward at an angle from point A. 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
-While in flight, how do the x and y components of the velocity vector of the ball compare at the points B and C?

• A)The velocity components are non-zero at B and zero at C.
• B)The x components are the same; the y component at C is zero m/s.
• C)The x components are the same; the y component has a larger magnitude at C than at B.
• D)The x component is larger at C than at B; the y component at B points up while at C, it points downward.
• E)The x component is larger at B than at C; the y component at B points down while at C, it points upward.

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Definitions:

East St. Louis

A city in Illinois notable for the 1917 race riot, one of the most violent episodes of racial conflict in the 20th-century United States.

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A violent disturbance by a crowd, often a symptom of social unrest or protest against authority or government policies.

Nannie Helen Burroughs

An African American educator, orator, religious leader, and businesswoman, known for her activism for women's rights and the education of black children, founding the National Training School for Women and Girls in Washington, D.C., in 1909.

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Former name for what is now the Department of Defense in the United States, responsible for military affairs until it was restructured in 1947.