A Projectile Fired from a Gun Has Initial Horizontal and Vertical

question 59

Multiple Choice

A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 30 m/s and 40 m/s, respectively.
-What is the acceleration of the projectile when it reaches its maximum height?

• A)zero m/s²
• B)9.8 m/s², downward
• C)4.9 m/s², downward
• D)less than 9.8 m/s² and non-zero.
• E)Its magnitude is 9.8 m/s²; and its direction is changing.

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