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Part A, B, and C

A box (40 kg) is attached to a heavy pulley (with mass 8 kg and radius of 20 cm, treat it as a solid
G
disk). Initially the box is hung 6 meters above the ground.
28. find the velocity of the box when it strikes the ground.
a. 11 m/sec
b. 10 m/sec
c. 9 m/sec
d. 8 m/sec
29. find the tension on the string.
a. 78.4 N
c. 35.6 N
b. 392 N
d. 178 N
30. find the angular acceleration of the pulley.
a. 44.5 rad/s²
b. 49 rad/s²
c. 38 rad/s²
a
Mg
M
d. 53 rad/s²
m
↑
6m

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