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4. a) The pulley system shown in Figure Q4(a) has two masses attached as shown.
Assume that there is no friction and that the masses of the wheels may be
considered to be negligible.
(i) determine the accelerations of the bodies A and B in the pulley system.
(ii) describe briefly the additional factors that you will take into consideration if
the masses of the wheels are not negligible.
30 kg
A
200
10 kg

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