Suppose a block with mass 2.30 kg is resting on a ramp. If the coefficient of st

Question

Suppose a block with mass 2.30 kg is resting on a ramp. If the coefficient of static friction between the block and the ramp is 0.340, what maximum angle can the ramp make with the horizontal before the block starts to slip down?

Suppose a block with mass 2.30 kg is resting on a ramp. If the coefficient of static friction between the block and the ramp is 0.340, what maximum angle can the ramp make with the horizontal before the block starts to slip down? ½ EXERCISE HINTS: Use the values from PRACTICE IT to help you work this exercise. The ramp in the figure is roughed up and the experiment repeated. (a) What is the new coefficient of static friction if the maximum angle turns out to be 31.4½? (b) Find the maximum static friction force that acts on the block. N

Explanation / Answer

MAX ANGLE = TAN INVERSE = 18.77 DEGREE

COFF OF FRICTION = TAN 31.4'" = .61

MAX FRICTION FORCE ACTING ON THE SYS = Mg sin = 2.3 * 10 * sin

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