Question: A 5-meter ladder leans against a vertical wall. Initially, at t=0, the top is 4 meters above the ground. As the top slides down the

A 5-meter ladder leans against a vertical wall. Initially, at t=0, the top is 4 meters above the ground. As the top slides down the wall with a constant speed of 2 m/s, (a) determine the equation of motion and velocity for the ladder's lower end; and (b) at t=1 s, find the velocity for the ladder's lower end.

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