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Q. A 3m-long, 370 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 69-kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted in place?

Q. A cheetah can run briefly with a speed of 31.00 m/s. Suppose a cheetah with the mass of 47 kg runs at this speed. What is the cheetah's kinetic energy?

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