Question on: WAEC Physics - 1998
If (\theta) is equal to (\alpha) at the time the box is just about to slide down the plank, the coefficient of static friction between the plank and box is
A
sin\(\alpha\)
B
cos\(\alpha\)
C
tan\(\alpha\)
D
sec\(\alpha\)
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Correct Option: C
(\mu = \frac{F}{R} = \frac{W sin \theta}{W cos q})
= tan(\theta)
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