Definition of Work (MC) According to the concept of work as it is used in physic

Question

Definition of Work (MC) According to the concept of work as it is used in physics, which of the following statements are true? True A force acts toward the right while the object moves to the left. The work done by the force is negative. True A construction worker pushes on a heavy box of bricks until he is exhausted but the box does not move. No work is done by the force applied to the box FalsePositive work is done when a force is applied perpendicular to the displacement. True The force that a weight lifter applies to the weight does positive work as she holds the weight stationary over her head True A vertical force acts on a mass while it moves horizontally (but not vertically). No work is done by the vertical force. Submit Answer Incorrect. Tries 1/2 Previous Tries

Explanation / Answer

TTFFT

work in 4th part is zero  
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