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Determine the velocity in ft/s of the block

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Reference no: EM13963271

1. AN ELECTRIC MOTOR ACCELERATES THE 6-in DIAMETER GRINDING WHEEL AT A RATE 0F 150 rad/s2 FROM REST UNTIL IT REACHES ITS OPERATING SPEED OF 3600 rpm. DETERMINE:

a) The time in seconds required for the wheel to reach 3600rpm

b) The number of revolutions of the wheel required to reach 3600rpm

c) The velocity in ft/s of particle P on the periphery of the wheel at 3600rpm

d) The magnitude of the acceleration in ft/s2 of this particle at 3600 rpm

e) The relative velocity VP/Q

1123_fig3.png

2. ROD BC IS PINNED TO THE 10-lb SLIDING BLOCK AT POINT C AND TO ROD AB AT POINT B. IF ROD BC IS MADE TO ROTATE AT A CONSTANT RATE OF 2rpm CLOCKWISE, DETERMINE FOR THIS INSTANT:

a) The velocity in ft/s of the block

b) The angular velocity in rad/s of rod AB

c) The speed in ft/s of pin B

d) The magnitude of the acceleration in ft/s2 of pin B

e) The Instantaneous Center of rod AB is at D, YES or'NO

884_fig2.png

Reference no: EM13963271

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