Motion Clock
Find the static and kinetic coefficient of friction between the clock and the ground?
A clock of 95 kg at rest on a horizontal surface requires a force 650 N horizontal to set in motion. After the clock is in motion, a horizontal force of 560 N keeps you moving with constant velocity. Search mu mu static and kinetic between the clock and soil
ΣF = 0 F – f = 0 F – (μ_static) mg = 0 650 – (μ_static) (95) (9.8) = 0 = 0.698174 μ_static ΣF = 0 F – f = 0 F – (μ_kinetic) mg = 0 560 – (μ_kinetic) (95) (9.8) = 0 = 0.601504 μ_kinetic
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