Sliding Down a Ramp
Consider a triangular block mass is resting on an adjustable ramp in the figure below. The block begins to slide when the ramp is rotated upwards until the angle is at 40°. Determine the coefficient of static friction.
Expand Hint
Breaking down the gravitational force into frictional and normal force components:
Hint 2
The max friction force developed before the block slides is
$$F_{static}\leq \mu F_{normal}$$
Breaking down the gravitational force into frictional and normal force components:
The max friction force developed before the block slides is
$$F_{static}\leq \mu F_{normal}$$
$$$F_{static}= \mu F_{normal}\rightarrow \mu=\frac{F_{static}}{F_{normal}}$$$
$$$\mu=tan(\theta)=tan(40)=0.84$$$
0.84
Time Analysis
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