Determine the angular acceleration of discus
A discus thrower applies a torque of 5 Nm on a discus of 2 kg. The discus consists of a radius of gyration of 10 cm. When this is the only torque applied on the discus, determine its angular acceleration?
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He then expands into a layout position and twice his radius of gyration just before landing on the trampoline bed. Determine how fast is his angular velocity at this instant, just before landing on the trampoline bed?
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Determine the value of E for a system that absorbs 213 J of heat and has 55 J of work performed on it. Demonstrate the formula, what each number represents, and how to solve?
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Assume the gun fires the bullet into air with the initial speed of 2048 ft/s at the angle of 30o to horizontal. After how many seconds will bullet hit ground?
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