Which of the Following Statements Are True About an Object

question 88

Multiple Choice

Which of the following statements are true about an object in two-dimensional projectile motion if we neglect air? (There could be more than one correct choice.)

• A)The speed of the object is constant but its velocity is not constant.
• B)The acceleration of the object is +g when the object is rising and -g when it is falling.
• C)The acceleration of the object is zero at its highest point.
• D)The speed of the object is zero at its highest point.
• E)The horizontal acceleration is always zero and the vertical acceleration is always a non-zero constant downward.

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