The vertical motion of the 50-lb block is controlled by the two forces P applied to the ends A and B of the linkage, where A and B are constrained to move in the horizontal guide. If forces P = 250lb are applied with the linkage initially at rest with θ = 60°, determine the upward velocity v of the block as θ approaches 180°. Neglect friction and the weight of the links and note that P is greater than its equilibrium value of (5W/2) cot 30° = 217 lb.
The vertical motion of the 50-lb block is controlled by the two forces P applied to the ends A and B of the linkage, where A and B are constrained to move in the horizontal guide. If forces P = 250lb are applied with the linkage initially at rest with θ = 60°, determine the upward velocity v of the block as θ approaches 180°. Neglect friction and the weight of the links and note that P is greater than its equilibrium value of (5W/2) cot 30° = 217 lb.
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The vertical motion of the 50-lb block is controlled by the two forces P applied to the ends
A and B of the linkage, where A and B are constrained to move in the horizontal guide. If
forces P = 250lb are applied with the linkage initially at rest with θ = 60°, determine the
upward velocity v of the block as θ approaches 180°. Neglect friction and the weight of the
links and note that P is greater than its equilibrium value of (5W/2) cot 30° = 217 lb.
Transcribed Image Text:of
W = 50 lb
b = 10"
B
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