Select the true statement about the work done by gravity on an object moving horizontally.
Understand the Problem
The question asks to identify the correct statement regarding the work done by gravity on an object moving horizontally. This involves understanding the relationship between force (gravity), displacement (horizontal movement), and the angle between them in the context of work done.
Answer
No work is done.
The final answer is no work is done
Answer for screen readers
The final answer is no work is done
More Information
When an object moves horizontally, the force of gravity is perpendicular to the direction of displacement. Therefore, the work done by gravity is zero because work is calculated as force times distance times the cosine of the angle between them, and the cosine of 90 degrees is zero.
Tips
A common mistake is to assume that gravity always does work on an object, but this is not true when the motion is perpendicular to the gravitational force.
Sources
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