A 500-Kg Block Is Being Pulled Up a 16

question 66

Multiple Choice

A 50.0-kg block is being pulled up a 16.0° slope by a force of 250 N which is parallel to the slope.The coefficient of kinetic friction between the block and the slope is 0.200.What is the magnitude of the acceleration of the block?

• A) 0.528 m/
• B) 0.158 m/
• C) 0.412 m/
• D) 0.983 m/
• E) 0.260 m/

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Definitions:

Ladder

A set of steps or rungs between two vertical bars, used for climbing up or down.

Shaping

A method of behavior modification that involves gradually training an organism to perform a specific behavior by reinforcing successive approximations of the target behavior.

Reinforce

To strengthen a behavior by providing a consequence that increases the likelihood of the behavior being repeated.

Lever

A simple machine consisting of a rigid bar that pivots on a fixed point, used to transfer force and change the direction of force.