Question #183667

Answer in three decimal places


1.If block A has a velocity of 8.1 ft/sec to the right, determine the velocity of cylinder B. The velocity of B is positive if downward, negative if upward.


vB = __ ft/sec


2.At a certain instant, the velocity of cylinder B is 0.91 m/s down and its acceleration is 3.69 m/s2 up. Determine the corresponding velocity and acceleration of block A. The velocity and acceleration of A are positive if down the slope and negative if up the slope.


vA= _ m/s

aA= _ m/s2

1
Expert's answer
2021-04-22T07:27:19-0400

1)

vB=vA2=4.050 fts.v_B=\frac{v_A}{2}=4.050~\frac{ft}{s}.

2)

vA=2vB=1.820 ms,v_A=2v_B=1.820~\frac{m}{s},

aA=aB4=0.923 ms2.a_A=\frac{a_B}{4}=0.923~\frac{m}{s^2}.


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