An elevator car has two equal masses attached to the ceiling as shown. (Assume m = 4.10 kg.) (a) The elevator ascends with an acceleration of magnitude 1.70 m/s², what are the tensions in the two strings? (Enter your answers in N.) T, = 108 24 Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the mass. You might find it easier to solve for T, first, then use your result when solving for T,. N T2 - 54.12 Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the mass. You might find it easier to solve for T, first, then use your result when solving for T. N (b) The maximum tension the strings can withstand is 101.2 N. What is the maximum acceleration of the elevator so that a string does not break? (Enter the magnitude in m/s².) 1.27 Note that the tension is greater in the upper string, so this string will break first. Find a when T; = Tmax" m/s?

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An elevator car has two equal masses attached to the ceiling as shown. (Assume m = 4.10 kg.)
T
m
T2
m
(a) The elevator ascends with an acceleration of magnitude 1.70 m/s2. What are the tensions in the two strings? (Enter your answers in N.)
T, = 108.24
Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the two masses related? Apply Newton's second law to each
mass. You might find it easier to solve for T, first, then use your result when solving for T,. N
T2 = 54.12
Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the two masses related? Apply Newton's second law to each
mass. You might find it easier to solve for T, first, then use your result when solving for T,. N
(b) The maximum tension the strings can withstand is 101.2 N. What is the maximum acceleration of the elevator so that a string does not break? (Enter the magnitude in m/s?.)
1.27
Note that the tension is greater in the upper string, so this string will break first. Find a when T, = T
max m/s2
Transcribed Image Text:An elevator car has two equal masses attached to the ceiling as shown. (Assume m = 4.10 kg.) T m T2 m (a) The elevator ascends with an acceleration of magnitude 1.70 m/s2. What are the tensions in the two strings? (Enter your answers in N.) T, = 108.24 Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the two masses related? Apply Newton's second law to each mass. You might find it easier to solve for T, first, then use your result when solving for T,. N T2 = 54.12 Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the two masses related? Apply Newton's second law to each mass. You might find it easier to solve for T, first, then use your result when solving for T,. N (b) The maximum tension the strings can withstand is 101.2 N. What is the maximum acceleration of the elevator so that a string does not break? (Enter the magnitude in m/s?.) 1.27 Note that the tension is greater in the upper string, so this string will break first. Find a when T, = T max m/s2
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