- #1
elpermic
- 29
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Homework Statement
its for me midterm..
a person applies a constant force on an object of mass 20 kg that causes the object to move horizontally at a constant speed of 0.20 m/s through a distance of 0.80m . What is the work done on the object?
A) 0J
B) 10J
c)16J
d)160jNow the answer is 0J. But I don't understand why.. THe professor says its 0J and his reason is "Force counteracting gravity is perpendicular to the displacement."
Homework Equations
The Attempt at a Solution
is it because the question is saying what is the work done by the object?? because it doesn't say what's the work done on the object by the person..