An Airplane Travels from East to West with a Velocity

question 42

Multiple Choice

An airplane travels from east to west with a velocity 450 mi/hr relative to the Earth. At the same time the wind is blowing from west to east at 50 mi/hr. What is the speed of the plane with respect to the air?

• A) 500 mi/hr
• B) More than 450 mi/hr but less than 500 mi/hr
• C) 450 mi/hr
• D) More than 400 mi/hr but less than 450 mi/hr
• E) 400 mi/hr

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Definitions:

Reciprocity

A social norm of responding to a positive action with another positive action, rewarding kind actions.

Empathy

An emotional response to others as if we ourselves were in that person’s situation; feeling pleasure at another’s pleasure or pain at another’s pain.

Responsible

The state or quality of being accountable or to blame for something, often involving obligations to act ethically and sensibly.

Bystanders

Individuals who are present at an event or incident but do not take part.