A Packing Crate Slides Down an Inclined Ramp at Constant

question 103

Multiple Choice

A packing crate slides down an inclined ramp at constant velocity. Thus we can deduce that

• A) a frictional force is acting on it.
• B) a net downward force is acting on it.
• C) a net upward force is acting on it.
• D) it is not acted on by appreciable normal force.
• E) it is not acted on by appreciable gravitational force.

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