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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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