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nT5B-CT17: ROPES PULLING BOXES-ROPE TENSION Shown below are boxes that are being pulled by a force F along frictionless surfaces, accelerating toward the left. The masses of the boxes are indicated in each figure. F A 2m m m B 2m Will the magnitude of the tension in rope A on the left be greater than, less than, or equal to the magnitude of the tension in rope B on the right? 9₁ = F Explain. 3m T8 = 2M ^ 9₂ = 2m (F) = 25 2F 3 TB-2 TB STA TA = mxa₁ - mx (m) = { мла

nT5B-CT17: ROPES PULLING BOXES-ROPE TENSION Shown below are boxes that are being pulled by a force F along frictionless surfaces, accelerating toward the left. The masses of the boxes are indicated in each figure. F A 2m m m B 2m Will the magnitude of the tension in rope A on the left be greater than, less than, or equal to the magnitude of the tension in rope B on the right? 9₁ = F Explain. 3m T8 = 2M ^ 9₂ = 2m (F) = 25 2F 3 TB-2 TB STA TA = mxa₁ - mx (m) = { мла

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 37P: An elevator filled with passengers has a mass of 1.70103kg . (a) The elevator accelerates upward...
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nT5B-CT17: ROPES PULLING BOXES-ROPE TENSION Shown below are boxes that are being pulled by a force F along frictionless surfaces, accelerating toward the left. The masses of the boxes are indicated in each figure. F F 2m m m 2m Will the magnitude of the tension in rope A on the left be greater than, less than, or equal to the magnitude of the tension in rope B on the right? Explain. I need to show all work
nT5B-CT17: ROPES PULLING BOXES-ROPE TENSION Shown below are boxes that are being pulled by a force F along frictionless surfaces, accelerating toward the left. The masses of the boxes are indicated in each figure. A 2m m F 9₁= = m Will the magnitude of the tension in rope A on the left be greater than, less than, or equal to the magnitude of the tension in rope B on the right? F — 14 = mxa₁ = mx (m) = { Explain. 3m тв = 2м ла 2= 2mi TB-2 TB TA TA B NT5B-WWT18: LIFTING UP A PAIL-STRATEGY A loaded pail is attached to a rope that passes around an overhead pulley and is tied to a ring on the floor. Linda, a construction worker, plans to untie the rope from the ring, pull on the rope to lift the pail 1 meter higher, and then retie the rope. Linda weighs 800 N and is capable of lifting twice her weight, 1600 N. The loaded pail weighs 1200 N. 2m = 2m (E) = 2 E 3 What, if anything, is wrong with Linda's plan? Explain how to correct it or if the plan will work, explain why.
Transcribed Image Text:nT5B-CT17: ROPES PULLING BOXES-ROPE TENSION Shown below are boxes that are being pulled by a force F along frictionless surfaces, accelerating toward the left. The masses of the boxes are indicated in each figure. A 2m m F 9₁= = m Will the magnitude of the tension in rope A on the left be greater than, less than, or equal to the magnitude of the tension in rope B on the right? F — 14 = mxa₁ = mx (m) = { Explain. 3m тв = 2м ла 2= 2mi TB-2 TB TA TA B NT5B-WWT18: LIFTING UP A PAIL-STRATEGY A loaded pail is attached to a rope that passes around an overhead pulley and is tied to a ring on the floor. Linda, a construction worker, plans to untie the rope from the ring, pull on the rope to lift the pail 1 meter higher, and then retie the rope. Linda weighs 800 N and is capable of lifting twice her weight, 1600 N. The loaded pail weighs 1200 N. 2m = 2m (E) = 2 E 3 What, if anything, is wrong with Linda's plan? Explain how to correct it or if the plan will work, explain why.
Draw a picture Label which directions are positive (x- and y-), and label relevant quantities on diagram Find a second equation... ...if you're missing a quantity needed to use an equation. Draw up a plan on how to link the equations & quantities Solve for the quantity without using numbers Physics Problem Flow Chart Draw a second picture... Identify explicitly given values First cancel any quantities that are zero. Use algebra to isolate the quantity you need on one side of the equals sign. Check with dimensional analysis ...if you have BEFORE/AFTER situations, force additions, vector component diagrams Find relevant equation(s) One that links the given quantities to the quantity you need to find Sub in numbers on paper Make sure units of each number are correct before you substitute in values into the equations Write all given actual numbers in terms of variables. For previously calculated values, use values before rounding for sig figs Identify required quantity and type of problem Look for keywords like "when", "how far", "how fast", etc. Get type of problem from quantities given/sought Use calculator to find value Use as few presses of the "=" or "ENTER" button as possible. Keep extra sig figs until next step Identify implicitly given values Wording that implies specific values: e.g. "at rest", "comes to a stop", "dropped", "smooth surface", "constant velocity" Calculate/convert easily derived quantities For example, the x- and y- components of velocity/force vectors, or the force of gravity given the mass Write conclusion statement with correct sig figs In plain English with correct units
Transcribed Image Text:Draw a picture Label which directions are positive (x- and y-), and label relevant quantities on diagram Find a second equation... ...if you're missing a quantity needed to use an equation. Draw up a plan on how to link the equations & quantities Solve for the quantity without using numbers Physics Problem Flow Chart Draw a second picture... Identify explicitly given values First cancel any quantities that are zero. Use algebra to isolate the quantity you need on one side of the equals sign. Check with dimensional analysis ...if you have BEFORE/AFTER situations, force additions, vector component diagrams Find relevant equation(s) One that links the given quantities to the quantity you need to find Sub in numbers on paper Make sure units of each number are correct before you substitute in values into the equations Write all given actual numbers in terms of variables. For previously calculated values, use values before rounding for sig figs Identify required quantity and type of problem Look for keywords like "when", "how far", "how fast", etc. Get type of problem from quantities given/sought Use calculator to find value Use as few presses of the "=" or "ENTER" button as possible. Keep extra sig figs until next step Identify implicitly given values Wording that implies specific values: e.g. "at rest", "comes to a stop", "dropped", "smooth surface", "constant velocity" Calculate/convert easily derived quantities For example, the x- and y- components of velocity/force vectors, or the force of gravity given the mass Write conclusion statement with correct sig figs In plain English with correct units
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