1. For the meter stick in Figure 10-4, what is the magnitude of the net torque d
ID: 1553781 • Letter: 1
Question
1. For the meter stick in Figure 10-4, what is the magnitude of the net torque due to both forces Fl and F2 about an axis perpendicular to the page through point A? Is it clockwise or counterclockwise? Show your work.
2. In Figure 10-5 if mass ml = 0.100 kg acts at 20.0 cm, what is the value of mass rn2 that must be placed at the position 70.0 cm shown to put the system in equilibrium? Write the equation for E = ETCW with the mass as unknown and solve for rt2. Assume that the meter stick is uniform and symmetric. Show your work.
10 20 40 50 60 70 80 30 10.0 N F2 15.0 N Figure 10-4 Meter stick with two forces Fl and F2 acting at points shown. 90Explanation / Answer
1) Torque due to F1 = 10 N * 10 cm = 10 * 10 * 10-2
= 1 N.m [clockwise]
Torque due to F2
T = 15 * (70 - 50) cm
T = 3 N.m [clockwise]
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