A Teacher Sends Her Students on a Treasure Hunt

question 32

Multiple Choice

A teacher sends her students on a treasure hunt. She gives the following instructions: 1. Walk 300 m north
2. Walk 400 m northwest
3. Walk 700 m east-southeast and the treasure is buried there.
As all the other students walk off following the instructions, Joe physics student quickly adds the displacements and walks in a straight line to find the treasure. How far and in what direction does Joe need to walk?

• A)187 m in a direction 67.3° north of east
• B)481 m in a direction 40.9° north of east
• C)399 m in a direction 52.5° north of east
• D)284 m in a direction 28.2° west of north
• E)The treasure position cannot be reached in one straight walk.

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Definitions:

Coolants

Substances used to reduce or maintain the temperature of systems or components, often in mechanical and electrical devices.

Sterilants

Chemical or physical agents used to destroy or eliminate all forms of microbial life, including spores.

Biodegradable

Capable of being decomposed by bacteria or other living organisms, thus avoiding pollution.

Odourless

Lacking a detectable smell, characteristic of certain substances or conditions where no odor is perceptible.