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1)A mass of - kg is supported from above as shown in the figure. To the nearest Newton what is the tension in wire 1?


2) In problem 1) what is the tension in the second wire?

3) In the second figure A 20 kg mass, m, hangs from one end of a wooden table top,which lays on two supports . If the supports are a distance L= meters apart, to the nearest Newton, what is the supporting force of the first leg?


4)In problem 3) what is the supporting force of the second leg (to the nearest Newton)?

5) If the hanging mass in figure 2 above is kg, what is the minimum value of L (to the nearest hundredth of a meter) for which the arrangement will be stable?

6) If L in the second figure is meters, what is the maximum value (to the nearest gram) of the hanging mass, m, for which the arrangement will be stable?

7) A kg student sits on a chair which is solely supported by a solid 1/2 meter long steel rod 1cm in diameter. To the nearest micron (millionth of a meter) what is the change in length of the rod produced by the students weight?
8) In problem 7) what is the minimum radius (to the nearest tenth of a millimeter) of the supporting rod that will support the student.

9) In the figure below, the bar is meters long and has a mass of 100 kg, to the nearest Newton what is the tension in the wire?


10)In problem 9 (to the nearest Newton) what is the magnitute of the hinge force?