Ch 09 HW A Bar Suspended by Two Vertical Strings 90f 15 Find TA, the tension in

Question

Ch 09 HW A Bar Suspended by Two Vertical Strings 90f 15 Find TA, the tension in string A. Express your answer in newtons using three significant figures. View Available Hin(s) The figure (Figure 1) shows a model of a crane that may be mounted on a truck.A rigid uniform horizontal bar of mass m 1 = 80.0 kg and length 5.50 m is supported by two vertical massless strings. String A is attached at a distance d 1.30 m from the left end of the bar and is connected to the top plate. String B is attached to the left end of the bar and is connected to the floor. An object of mass m2 = 2500 kg is supported by the crane at a distance z = 5.30 m from the left end of the bar. Throughout this problem, positive torque is counterclockwise and use 9.80 m/s2 for the maanitude Submit Figure 1 of 1 Part B Find Ts, the magnitude of the tension in string B Express your answer in newtons using three significant figures. View Available Hint(s) mj In Submit

Explanation / Answer

Using equilibrium of torque about P

TA (PQ) = (m1 g) (PR) + m2g (PS)

TA (d) = (m1 g) (L/2) + m2g (x)

inserting the values

TA (1.30) = (80 x 9.8) (5.50/2) + (2500 x 9.8) (5.30)

TA = 1.02 x 105 N

B)

using equilbrium of force

TA = TB + m1 g + m2 g

1.02 x 105 = TB + (80 + 2500) (9.8)

TB = 0.77 x 105 N

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.