Intro to Forces + Newton's Laws Video Lessons

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Problem: A 20-kg loudspeaker is suspended 2.0 m below the ceiling by two ropes that are each 30° from vertical. What is the tension in the ropes?Identify the forces acting on the loudspeaker and then draw them on the free-body diagram. Draw the vectors starting from the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded.

FREE Expert Solution

To solve this problem, we need to first know the forces acting on the loudspeaker. 

We also need to use Newton's second law:

ΣF=ma

We have tension acting on rope 1, T1.

Tension acting on rope 2, T2.

The weight of the loudspeaker, mg.

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Problem Details

A 20-kg loudspeaker is suspended 2.0 m below the ceiling by two ropes that are each 30° from vertical. What is the tension in the ropes?

Identify the forces acting on the loudspeaker and then draw them on the free-body diagram. Draw the vectors starting from the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded.

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