If the effort arm of a lever is 130 meters, and the output arm is 15% the distance of the effort arm, what is the mechanical advantage of this lever?
Based on your answer, which force is greater, input or output, or are they
the same? *

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: