The discussion focuses on calculating the angle at which a box begins to slide down a plank using the static friction coefficient. Given a mass of 10 kg and a static friction coefficient (Us) of 0.4, the correct calculation involves using the equation Us = tan(Θ). The solution yields an angle (Θ) of approximately 21.8 degrees, confirming the accuracy of the method employed by the user.
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phee said:Homework Statement
m = 10kg
static friction coefficient (Us) = 0.4
angle = ?
Homework Equations
If the coefficient of static friction is 0.4, calculate the angle at which the box begins to slide down the plank as it tilts.
The Attempt at a Solution
m = 10kg
Us = 0.4
angle = ?
Attempt:
Us = tanΘ
0.4 = tanΘ
Θ= tan-1 0.4
Θ= 21.8
Is what I did correct? Thank you for feedback