A 77.0 kg person is being pulled away from a burning building as shown in the figure below. 15% T₁ J.10⁰ Calculate the tension (in N) in the first rope, T₁, if the person is momentarily motionless. N Calculate the tension (in N) in the second rope, T₂, if the person is momentarily motionless. N Include a free-body diagram in your solution. (Submit a file with a maximum size of 1 MB.) Choose File no file selected

A 77.0 kg person is being pulled away from a burning building as shown in the figure below. 15% T₁ J.10⁰ Calculate the tension (in N) in the first rope, T₁, if the person is momentarily motionless. N Calculate the tension (in N) in the second rope, T₂, if the person is momentarily motionless. N Include a free-body diagram in your solution. (Submit a file with a maximum size of 1 MB.) Choose File no file selected

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 72AP: Two small forces, F1=2.40i6.10tj N and F2=8.50i9.70j N , are exerted on a rogue asteroid by a pair...

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Two small forces, F1=2.40i6.10tj N and F2=8.50i9.70j N , are exerted on a rogue asteroid by a pair of space tractors. (a) Find the net force. (b) What are the magnitude and direction of the net force? (c) If the mass of the asteroid is 125 kg, what acceleration does it experience (in vector form)? (d) What are the magnitude and direction of the acceleration?
Two blocks are connected by a string. The inclination of the ramp is θ, while the masses of the blocks are m1 and m2. Friction is negligible. 1. Write an equation for the magnitude of the acceleration the two blocks experience. Give your equation in terms of m1, m2, θ, and the acceleration due to gravity g. 2. Write an equation for the tension in the string in terms of m1, the acceleration due to gravity g, and the acceleration of the two blocks a.
1. Each of the following blocks are being pulled or pushed on a frictionless surface. For each block.. Draw a complete free body diagram in the space provided (don't forget any forces) b. Use geometric vector addition to draw the net force vector а. Calculate the net force in each direction (clearly label your directions) d. Using Newton's second dlaw find the acceleration along the surface. с. 10N 5kg 8N 6N 4kg 占- 8N 5N 10N 20kg 20kg 5N
The block shown in figure #1 above has a mass of 4.30 kg. The applied force (? ⃑ ) has a magnitude of 31.2 N and is 32.0° above the horizontal, frictionless surface the block in on. a. Draw the free-body diagram for the block. b. Set-up Newton’s 2nd Law for the block.
Three cables are used to hold a hot-air balloon in place. The tension in the cable AD is 658 N. Draw the Free Body Diagram at A. Upload this along with your all your workings for this problem to the dropbox. What is the tension in the cable AB? Enter using 3 significant figures. What is the tension in the cable AC? Enter using 3 significant figures. What is the vertical force V exerted by the balloon at point A? Enter using 4 significant figures.
A block resting on a plane inclined at an angle 36o from the horizontal is being held in place by steel cables a, b, and c as shown in the figure below. The tension in cable b is 75.0 N. Note that cable a is parallel to the surface of the incline and that cable b is perfectly horizontal. a. determine the normal force N and the force due to gravity ??.b. What is the mass of the block in kilograms?
Santa Clause is about to distribute his gifts, but his reindeer Rudolph is still sleepy. So, instead of flying they use the ground and cross a 20-m-long bridge. Starting from rest, Rudolph pulls Santa and his sleigh, with a force F 30° above the horizontal against a frictional force of 80N. 1. Draw an appropriate free body diagram to represent all the forces acting on Santa and his sleigh. 2. Suppose the combined mass of Santa, his sleigh, and his gifts is 500kg. What is the magnitude of Fif the acceleration of Santa and his sleigh is 1.5 meters per second squared? 3. How much work is done by Rudolph in pulling Santa and his sleigh in crossing the bridge? 4. What is the change in the kinetic energy of Santa and his sleigh after crossing the bridge? 5. How fast are they moving at the end of the bridge?
Two masses B and C are connected with a string passing over a friction less pully, assuming the coefficient of friction between the table and block is μ=0.4 , and the acceleration of gravity g=9.81 m/s2. Solve the following questions (show all the steps of your calculations): A. Draw the free body diagram of the two masses.B. Find an expression of the acceleration of the two masses in terms of ?? and ??.C. Determine the tension in the rope in terms of ?? and ??.D. If ??= ʎ kg, ?? = (ʎ-5) kg, determine the acceleration of two blocks and the tension in the rope.(ʎ= the final two numbers of your ID +10, and, gravitational acceleration, g = 9.81 m/s2).
4. A 10 kg block on a level surface is pushed by a 50 N force directed 30 degrees below the horizontal (like this: ). The coefficient of static friction between the block and the surface is 0.60 and the coefficient of kinetic friction is 0.40. a. Does the block slide or stay put? Justify your answer with a calculation. b. If it slides, calculate its acceleration. If it stays put, calculate the friction force acting on the block. Show your work.
! DN Required information In the below FBD, the forces are labeled with their magnitudes. ΑΝ CN BN What is the net force? N where A = C = 17.4 and B = D = 13.5.
Three blocks where suspended in the air using massless strings and passing through massless and fixed pulleys as shown. The middle mass mB = 5.00 [kg]. When the system achieved equilibrium, it was found out that a = 60.0° and y = 30.0°. MA α тв mc Draw the free body diagrams of block A, B, and C. Write down Newton's 2nd law along the x and y directions for all three blocks. You must have six equations total.
a. What is the net force on the object? If the net force is to the right, enter a positive value and if it is to the left, enter a negative value. answer in N (first pic) b. What is the net force? answer in N (2nd pic)