A constant horizontal force $$\(F\)$$ applied to a block on an incline causes the block to move a distance $$\(d\)$$ along the incline, as shown. If the coefficient of friction between the block and the incline is $$\(\mu_{k}\)$$, what is the work done by the applied force? (Do not assume that the block moves at constant velocity.)
A.
\(W=F d \sin \theta\)
B.
\(W=F d \cos \theta\)
C.
\(W=m g d \sin \theta\)
D.
\(W=m g d \sin \theta-\mu_{k} m g d \cos \theta\)
E.
\(W=m g d \sin \theta+\mu_{k} d(m g \cos \theta+F \sin \theta)\)
Exam No：AP Physics C Practice Test Year：2024 Question No：1
Answer:
B
Knowledge points:
3.1 Work-Energy Theorem
Solution:
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