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Problem 3: A spool of string hangs on a peg in the wall. The spool is...

Problem 3: A spool of string hangs on a peg in the wall. The spool is a hoop with a radius of 0.25 m and a mass of 2kg. A mass of 0.5 kg is tied to the end of the string hanging off of the spool. The mass is held 2 m above the floor when it is released. The string is taut the entire time. a) What is the speed of the mass as it hits the ground? (Answer: 2.8") b) What is the final angular velocity of the spool? (Answer: 11.2 "ad) c) Consider the spool as the system and use the work kinetic energy theorem. How much work did tension created by the hanging mass do to the spool? (Answer: 7.84) • What is the angular displacement of the spool? (Answer: 8 rad) • What is the angular acceleration of the spool? (Answer: 7.84 ) • What is the torque applied to the spool? (Answer: 0.98 Nm) • What is the tension in the string? (Answer: 3.92 N)

Can Someone show how to solve these? I am having a difficult time. Thank you!

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