An electrically powered mechanical winch pulls a heavy crate up a rough inclined surface at a constant speed of $v = 1.14 m/s$. $\theta = 47^{\circ}$; $m = 63 kg$; $g = 9.8 m/s^2$; $\mu_k = 0.23$. Winch (a) If the efficiency of the winch motor is $\eta = 82$percent, what is the instantaneous electrical power input to the winch? Number Units
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First, let's determine the force required to pull the crate up the inclined surface at a constant speed. We can use the equation: Force = Weight of the crate + Frictional force Show more…
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