in the apparatus pictures below, a hanging mass m =25.0 grams is suspended by a

Question

in the apparatus pictures below, a hanging mass m =25.0 grams is suspended by a mass less string over a mass less frictionless pulley. the string is wound around a pulley attached to a disk. the raffia if the attached pulley is 1.5cm.the moment of inertia of the combined step/pulley is 74,000 gcm^2. the system begins at rest. convert all answers to MKS units.

The mass is now free to move.after it has fallen 20cm :

A) through what angle had the disk rotated?

B) what is the tension in the string?

C) What is the rotational kinetic energy of the disk wity attached pulley system?

D)what is the angular momentum of the disk with attached pulley system?

show work please! thanks

Explanation / Answer

b) T = 0.24 N

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