The pulleys in the diagram are all smooth and P light. The accelera...
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The pulleys in the diagram are all smooth and
P light. The acceleration of \( A \) is a upwards and the
W acceleration of \( C \) is \( f \) downwards. The acceleration of \( B \) is:
(1) \( 1 / 2(f-a) \) up
(2) \( 1 / 2(a+f) \) down
(3) \( 1 / 2(a+f) \) up
(4) \( 1 / 2(a-f) \mathrm{up} \)
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