(Use relative motion analysis): A single pulley having both an inner and outer rim is pin connected to the block at A as shown. As the cord CF unwinds from the inner rim of the pulley with the velocity and acceleration shown, cord DE unwinds from the outer rim. At the instant shown, determine: (a) the angular acceleration of the pulley. (b) The acceleration of the block. F VF = 2 m/s 3 m/s² af = 50 mm D 25 mm A E
(Use relative motion analysis): A single pulley having both an inner and outer rim is pin connected to the block at A as shown. As the cord CF unwinds from the inner rim of the pulley with the velocity and acceleration shown, cord DE unwinds from the outer rim. At the instant shown, determine: (a) the angular acceleration of the pulley. (b) The acceleration of the block. F VF = 2 m/s 3 m/s² af = 50 mm D 25 mm A E
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Transcribed Image Text:(Use relative motion analysis): A
single pulley having both an inner and outer rim
is pin connected to the block at A as shown. As
the cord CF unwinds from the inner rim of the
pulley with the velocity and acceleration shown,
cord DE unwinds from the outer rim. At the
instant shown, determine: (a) the angular
acceleration of the pulley. (b) The acceleration of the block.
F
"F= 2 m/s
a F = 3 m/s²
50 mm
D
O
25 mm
A
E
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Can you tell me why the angulr velocity is V_f (tangent V) divided by the radiai sumed. Is there a way to get that angular velocity using the relative velocities expression?
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