1. A certain wire, 9m long, stretches by 1.4mm when under tension 200 N. i.) how

1.1 b.) 0.70 mm 1.2 b.) 0.70 mm 2 c.) the object is in force equilibrium but not torque equilibrium

ID: 2098757 • Letter: 1

Question

1. A certain wire, 9m long, stretches by 1.4mm when under tension 200 N.

i.) how much does an equally thick wire 18 m long, made of the same material and under the same tension stretch by?

a.) 0.35 mm b.) 0.70 mm c.) 1.4 mm d.) 2.8mm e.) 5.6 mm

ii.) a wire with twice the diameter, 9m long, made of the same material and under the same tension, stretches by what amount?

a.) 0.35mm b.) 0.70 mm c.) 1.4 mm d.) 2.8 mm e.) 5.6 mm

2.) Consider the object subject to the two forces shown below. Choose the correct statement with regard to this situation.

a.) the object is in both force and torque quilibrium

b.) the object is in neither force nore torque equilibrium

c.) the object is in force equilibrium but not torque equilibrium

d.) the object is in torque equilibrium but not force equilibrium

1.1

b.) 0.70 mm

1.2

b.) 0.70 mm

c.) the object is in force equilibrium but not torque equilibrium

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