A Boy Pulls a 5

question 34

Multiple Choice

A boy pulls a 5.0-kg sled with a rope that makes a 60.0° angle with respect to the horizontal surface of a frozen pond. The boy pulls on the rope with a force of 10.0 N; and the sled moves with constant velocity. What is the coefficient of friction between the sled and the ice?

• A)0.09
• B)0.12
• C)0.18
• D)0.06
• E)0.24

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Definitions:

Fuel Mix

The combination of various fuel sources used to generate energy or power.

Two-Cycle Engine

An internal combustion engine that completes a power cycle with two strokes of the piston during only one crankshaft revolution.

Ratio

A mathematical expression that represents the relationship between two numbers, showing how many times one value contains or is contained within the other.

Equivalent Ratio

Ratios that express the same relationship between numbers, even though they may look different.