A Projectile Is Shot Upwards from the Surface of the Earth

question 17

Multiple Choice

A projectile is shot upwards from the surface of the earth with an initial velocity of 148 meters per second. The position function is .What is its velocity after 4 seconds?

• A)The velocity after 4 seconds is 128.4 meters per second.
• B)The velocity after 4 seconds is -167.6 meters per second.
• C)The velocity after 4 seconds is -187.2 meters per second.
• D)The velocity after 4 seconds is 108.8 meters per second.
• E)The velocity after 4 seconds is 276.4 meters per second.

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Definitions:

Behaviorists

Psychologists who study behavior based on the premise that all behaviors are acquired through conditioning.

Visual Imagery

The mental representation and simulation of visual perceptions in the absence of direct sensory input.

Scientific Control

A procedure in scientific experiments where all variables are kept constant except the variable being investigated.

Visualize

The process of forming mental images or concepts of something that is not currently being perceived through sight.