Q1. A 3.00-m-long, 380 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 74.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque about the point where the beam is bolted into place?
Q2. A 43kg block of ice slides down the frictionless incline 1.50m long and 0.82m high. A worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed.