A piano has a mass of 185 kg, and the coefficient of friction between it and the floor is 0.39. What is the maximum force of fri
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From the law of the lever:
<span>mechanical advantage= input arm : output arm
input arm- a
output arm-b
</span>
<span>Input arm is equal 4,8m</span>
<span>mechanical advantage= input arm : output arm
input arm- a
output arm-b
</span>
<span>Input arm is equal 4,8m</span>