Two Skiers Start at the Same Place and Finish at the Same

question 19

Multiple Choice

Two skiers start at the same place and finish at the same place.Skier A takes a straight,smooth route to the finish whereas Skier B takes a curvy,bumpy route to the finish.If you assume that friction is negligible,which of the following statements is true?

• A)Skier A has the same speed as skier B at the finish.
• B)Skier B has the greater speed at the finish.
• C)Skier A has the greater speed at the finish because the route is straight.
• D)Skier A has the greater speed at the finish because the route is smooth.
• E)Skier A has the greater speed at the finish because the route is both straight and smooth.

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Definitions:

Nonrenewable Resource

A natural resource that cannot be replenished or regenerated at the same rate at which it is consumed, such as oil, natural gas, and minerals.

Ethanol

A renewable fuel made from various plant materials collectively known as "biomass."

Economically Viable

A situation or project that is financially sustainable, able to generate revenue that exceeds its operating costs.

Nonrenewable Natural Resource

A natural resource that cannot be replaced or replenished once it is extracted or consumed, such as fossil fuels or minerals.