Question: The retractable shelf shown is supported by two identical linkage-andspring systems; only one of the systems is shown. A 20-kg machine is placed on the

The retractable shelf shown is supported by two identical linkage-andspring systems; only one of the systems is shown. A 20-kg machine is placed on the shelf so that half of its weight is supported by the system shown. If the springs are removed and the system is released from rest, determine

(a) The acceleration of the machine,

(b) The tension in link AB. Neglect the weight of the shelf and links. 80 mm 80 mm Fig. P16.13 G A 300 mm 30 50

80 mm 80 mm Fig. P16.13 G A 300 mm 30 50 mm 100 mm 30 B D 200 mm F 30 E 100 mm

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