from a homework

Degree Level: Pre-College

 

Question:

Which of the following scenarios result in NO work done on the underlined object?

(A) The gravitational force from the Earth acts on the Moon throughout its circular orbit.

(B) A compressed spring launches a rock into the air.

(C) A child pushes a box across a rough horizontal surface.

(D) A car skids to a stop after panic breaking.

(E) A football player pushes on a stationary wall with all his might.

Answer:

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