A Rocket Is Launched from the Origin with an Acceleration

question 60

Multiple Choice

A rocket is launched from the origin with an acceleration of 20.0 m/s² at an angle of 30.0 degrees above the horizontal.The launch acceleration lasts for 2.00 seconds at which time the fuel is exhausted.The rocket then falls with an acceleration of 9.80 m/s² downward.What is the X distance (range) when the rocket hits the ground?

• A) 153 m
• B) 166 m
• C) 187 m
• D) 205 m
• E) 230 m

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Definitions:

Cognitive Flexibility

The cognitive skill of moving between two distinct ideas, or the capacity to consider several ideas at the same time.

Selective Attention

The focusing of conscious awareness on a particular stimulus while ignoring other perceivable stimuli.

Metalinguistic Awareness

The ability to reflect upon and manipulate the structural components of language.

Vocabulary

The set of words known and used by a person in a particular language.