the figure shows a model of a crane that may be mounted on a truck.A rigid unifo

Question

the figure shows a model of a crane that may be mounted on a truck.A rigid uniform horizontal bar of mass m1 = 100.0kg and length L = 5.100m is supported by two vertical massless strings. String A is attached at a distance d = 1.800m 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 = 3000kg is supported by the crane at a distance x = 4.900m from the left end of the bar.

Throughout this problem, positive torque is counterclockwise and use 9.807m/s2 for the magnitude of the acceleration due to gravity.

A.)Find TA, the tension in string A.

B.)Find TB, the magnitude of the tension in string B

Explanation / Answer

Net torque is zero.
0 = (Tb)(d) - (m1)(g)(L/2 - d) - (m2)(g)(x - d)
Tb = g[(m1)(L/2 - d) + (m2)(x - d)] / d
Tb = (9.81 m/s

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

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