Solve the Problem $$\mathrm { s } = 144 + 128 \mathrm { t } - 16 \mathrm { t } ^ { 2 }$$

question 148

Multiple Choice

Solve the problem.
-A ball is thrown vertically upward from the top of a building 144 feet tall with an initial velocity of 128 feet per second. The distance s (in feet) of the ball from the ground after t seconds is $$\mathrm { s } = 144 + 128 \mathrm { t } - 16 \mathrm { t } ^ { 2 }$$ . After how
Many seconds does the ball strike the ground?

• A) 9 sec
• B) 145 sec
• C) 11 sec
• D) 8 sec

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Definitions:

Radial Nerve

A nerve that extends down the arm and is responsible for innervating the posterior portion of the upper limb.

Deltoid

A large, triangular-shaped muscle covering the shoulder joint, responsible for arm abduction.

Triceps Brachii

A muscle located at the back of the upper arm, responsible for extension of the elbow joint.

Cauda Equina

A bundle of spinal nerves and spinal nerve rootlets located at the lower end of the spinal cord, resembling a horse's tail.