To practice Problem-Solving Strategy 11.1 Equilibrium of a Rigid Body. A horizon

Question

To practice Problem-Solving Strategy 11.1 Equilibrium of a Rigid Body. A horizontal uniform bar of mass 2.4kg and length 3.0 m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached a distance 0.7m from the other end. A monkey of mass 1.2kg walks from one end of the bar to the other. Find the tension T1 in string 1 at the moment that the monkey is halfway between the ends of the bar.

Part a Find T1, the magnitude of the force of tension in string 1, at the moment that the monkey is halfway between the ends of the bar. Express your answer in newtons using three significant figures.
To practice Problem-Solving Strategy 11.1 Equilibrium of a Rigid Body. To practice Problem-Solving Strategy 11.1 Equilibrium of a Rigid Body. A horizontal uniform bar of mass 2.4kg and length 3.0 m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached a distance 0.7m from the other end. A monkey of mass 1.2kg walks from one end of the bar to the other. Find the tension T1 in string 1 at the moment that the monkey is halfway between the ends of the bar.

Part a Find T1, the magnitude of the force of tension in string 1, at the moment that the monkey is halfway between the ends of the bar. Express your answer in newtons using three significant figures.
Part a Find T1, the magnitude of the force of tension in string 1, at the moment that the monkey is halfway between the ends of the bar.

Explanation / Answer

T1 + T2 = (1.2+2.4)g = 3.6 g

.torque =0 => 3.6g(1.5) = T2(2.3) => T2 = 23.03217391304348 N

T1 = 12.284 N

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