A Projectile Is Shot Upwards from the Surface of the Earth

A projectile is shot upwards from the surface of the earth with an initial velocity of 108 meters per second.The position function is What is its velocity after 7 seconds?

A) The velocity after 7 seconds is 181.7 meters per second.
B) The velocity after 7 seconds is -142.3 meters per second.
C) The velocity after 7 seconds is 39.4 meters per second.
D) The velocity after 7 seconds is 73.7 meters per second.
E) The velocity after 7 seconds is -176.6 meters per second.

Correct Answer:

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