A Projectile Is Projected from the Origin with a Velocity

question 41

Multiple Choice

A projectile is projected from the origin with a velocity of 25.0 m/s at an angle of 45.0 degrees above the horizontal. What is the time it takes for the projectile to hit the ground?

• A) 1.95 s
• B) 2.22 s
• C) 2.75 s
• D) 3.04 s
• E) 3.61 s

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Definitions:

Sound of a Tone

A specific auditory perception characterized by a steady frequency or pitch, distinguishable from noise by its consistency and musical quality.

Acquisition

In classical conditioning, the initial stage, when one links a neutral stimulus and an unconditioned stimulus so that the neutral stimulus begins triggering the conditioned response.

Electric Shock

A sudden discharge of electricity through a part of the body, which can cause damage or stimulation.

Shaping

A method of behavior training in which successive approximations toward a target behavior are reinforced.