Questions
UCIC 202503 PHYS101 Quiz 3
Single choice
When is the work negative?
Options
A.a. When the projection of the force is in the opposite direction to the displacement
B.b. When the projection of the force is in the same direction as the displacement
C.c. When the projection of the force is smaller than the displacement
D.d. When the projection of the force is in the perpendicular direction to the displacement
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Step-by-Step Analysis
To determine when work is negative, we examine the definition of work in physics: work done by a force F along a displacement s is W = F · s = |F| |s| cos(theta), where theta is the angle between the force and displacement vectors.
Option a: 'When the proje......Login to view full explanationLog in for full answers
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