A Tennis Ball Is Thrown Upward at an Angle from Point

question 58

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
-Which statement is true concerning the ball when it is at C, the highest point in its trajectory?

• A)The ball's velocity and acceleration are both zero.
• B)The ball's velocity is perpendicular to its acceleration.
• C)The ball's velocity is not zero, but its acceleration is zero.
• D)The ball's velocity is zero, but its acceleration is not zero.
• E)The horizontal and vertical components of the ball's velocity are equal.

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Definitions:

Normal Distribution

A type of continuous probability distribution for a real-valued random variable, symmetrical and described by its mean and standard deviation.

Capability Index

A statistical measure that quantifies the ability of a process to produce output within specified limits.

Compressive Strength

The capacity of a material or structure to withstand loads that reduce the size, expressed typically in pounds per square inch (psi) or mega pascals (MPa).

Injection Molding

A technique to manufacture parts by injecting fluid material into a predefined mold.