1. Two blocks are connected by a very light string passing over a massless and frictionless pulley. (See Figure below).Travelling at a constant speed, the 20 N block moves 75 cm to the right and the 12 N block moves 75 cm downward.During this process, how much work is done (a) on the 12 N block by (1) gravity and (i) the tension in the string. (b) onthe 20 N block by (i) gravity, (ii) the tension in the string, (iii) friction, and (iv) normal force? (c) find the total work doneon each block.20.0NTension is the pulling force exertedby a cord on an object to which it isattached.12.0Figure 1.1 Problem 1

Name: 1. Two blocks are connected by a very light string passing over a mas
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: 1. Two blocks are connected by a very light string passing over a massless and frictionless pulley. (See Figure below).Travelling at a constant speed, the 20 N block moves 75 cm to the right and the 12 N block moves 75 cm downward.During this proces

Given:- Two blocks are connected with the string and pulley and the weight of the W1= 12 N block is…

Science

Physics

1. Two blocks are connected by a very light string passing over a massless and frictionless pulley. (See Figure below). Travelling at a constant speed, the 20 N block moves 75 cm to the right and the 12 N block moves 75 cm downward. During this process, how much work is done (a) on the 12 N block by (i) gravity and (ii) the tension in the string. (b) on the 20 N block by (i) gravity, (ii) the tension in the string, (iii) friction, and (iv) normal force? (c) find the total work done on each block. 20.0 N Figure 1.1 Problem 1 12.0 N Tension is the pulling force exerted by a cord on an object to which it is attached.

1. Two blocks are connected by a very light string passing over a massless and frictionless pulley. (See Figure below). Travelling at a constant speed, the 20 N block moves 75 cm to the right and the 12 N block moves 75 cm downward. During this process, how much work is done (a) on the 12 N block by (i) gravity and (ii) the tension in the string. (b) on the 20 N block by (i) gravity, (ii) the tension in the string, (iii) friction, and (iv) normal force? (c) find the total work done on each block. 20.0 N Figure 1.1 Problem 1 12.0 N Tension is the pulling force exerted by a cord on an object to which it is attached.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: 1. A2 kg ball travels in a horizontal circle connected to a 0.80 m string. The ball travels at a…

A: Given, Mass of ball is 2 Kg length of string l=0.80m constant speed v=6 m/s

Q: 8. Two forces F, and F; act on a particle. As a result the speed of the particle increases. Which…

Q: A worker slides a box of mass 10 kg at a constant velocity, along a flat surface. tHE WORKER IS…

Q: A helicopter lifts a 80 kg astronaut 20 m vertically from the ocean by means of a cable. The…

A: (a). The work done by helicopter is

Q: 2. A 2.00 kg block is initially at rest in space, when a force given by F= (4x2)i + (6y)j + (2.0)k…

Q: A block with a mass of 20.0 kg rests on a flat surface with a coefficient of kinetic friction of…

Q: You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 690…

A: Given that, weight of person (w1 ) = 690N weight of belongings w2 = 1040 N height of floor h =…

Q: You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 690…

Q: A non-constant force on a particle of mass m is given by F = F,| -+1 where Fo and xo are constants.…

Q: To push a 35 kg crate up a frictionless incline, angled at 18° to the horizontal, a worker exerts a…

A: Given Mass = 35 kg Angle = 18° Force = 127.2 N Crate slide distance = 1.5 m

Q: 8. A child pulls a friend in a little red wagon with constant speed. If the child pulls with a force…

A: Let's explain this problem in detail: A child pulls a friend in a little red wagon with a force of…

Q: Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 95.0 kg, down a 0 =…

A: Given data: The total mass is m=95 kg. The inclination of slope is θ=70°. The coefficient of…

Q: As I carry a box up a flight of stairs, am I doing positive work or negative work on the box?…

A: When you carry a box up a flight of stairs, the force is in the direction of the displacement. Hence…

Q: A 350 kg sofa slides 2.5 m down a 30° incline and who is pushing back on it parallel to the incline…

A: Given:- The mass of the sofa m = 350 kg The sliding length L = 2.5 m The angle of the incline is…

Q: Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 80.0 kg, down a ? =…

A: Note: As per the guidelines, we can only answer three subparts of a question. Sorry for the…

Q: An ?=45.0 cm wire is moving to the right at a speed of ?=7.90 m/s across two parallel wire rails…

Q: A box of mass 12.0 kg is pulled from rest up a 18.5 m long incline that makes an angle of 20.0° with…

A: Mass of box: m = 12 kg Length of inclined plane: s = 18.5 m Initial velocity of box: u = 0 FInal…

Q: 34. Go "Rocket Man" has a propulsion unit strapped to his back. He starts from rest on the ground,…

Q: 1. A particle was subjected to a force Fx that varies with position as described by the Fx vs. x…

A: Simple but intersting problem of force and work. Please have a good look

Q: Your brand new 75.0-kg refrigerator falls out of the back of your truck while you are traveling up a…

Q: A particle was subjected to a force F that varies with position as described by the F. vs. x graph…

A: According to the Newton's second law the net force acting on an object is defined as the product of…

Q: car with mass of 950 kg is traveling along a flat road at 35 m/s. To pass another the car speeds up…

A: Given Mass m= 950 kg Initial velocity u = 35 m/s Final velocity v = 42 m/s

Q: If we know that a force of 5 N is applied on an object while the object moves 2 m, can we determine…

A: Given : F = 5 N d = 2 m

Topic Video

Question

1. Two blocks are connected by a very light string passing over a massless and frictionless pulley. (See Figure below).
Travelling at a constant speed, the 20 N block moves 75 cm to the right and the 12 N block moves 75 cm downward.
During this process, how much work is done (a) on the 12 N block by (1) gravity and (i) the tension in the string. (b) on
the 20 N block by (i) gravity, (ii) the tension in the string, (iii) friction, and (iv) normal force? (c) find the total work done
on each block.
20.0
N
Tension is the pulling force exerted
by a cord on an object to which it is
attached.
12.0
Figure 1.1 Problem 1

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Step by step

Solved in 8 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

4. A luggage handler pulls a 25 kg suitcase up a ramp inclined 20° above the horizontal by a force F of magnitude 230 N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and suitcase is k = 0.15. If the suitcase travels 4.00 m up the ramp, calculate (a) the work done on the suitcase by F; (b) the work done on the suitcase by the gravitational force; (c) the work done on the suitcase by the normal force; (d) the work done on the suitcase by the friction force; (e) the total work done on the suitcase. (f) If the speed of the suitcase is zero at the bottom of the ramp, what is its speed after it has traveled 4.00 m up the ramp?
2. A person pushes a 2500 kg car from rest to a speed of v, doing 5000 J of work in the process. If the car moves a distance of 25.0 m during the time that the mechanic is pushing and resistive force are ignored, find (a) the car's final speed and (b) the horizontal force exerted on the car. Answers: (a) 2.00 m/s, (b) 200 N
Two blocks are connected by a very light string passing over a massless and frictionless pulley. Traveling at constant speed, the 20.0 N block moves 75.0 cm to the right and the 12.0 N 20.0 N 12.0 block moves 75.0 cm downward. How much work is done on the 20.0 N block by (i) the tension in the string, (ii) friction, and (iii) the normal force? (b) Find the total work done on each block.
4. A constant force of 20.0 N i pushes a 1.50 kg mass over a distance of 5.00 m. in the x-direction. (a) What is the work done by the force? (b) If this is the only force doing work, what is the final speed of the mass? (c) If there is friction in the system and the final speed of the mass is actually 11.0 m/s, what must the coefficient of kinetic friction be? Answers: (a) 100 J, (b) 11.5 m/s, (c) 0.629
Part A A 20.0-kg projectile is fired at an angle of 60.0 ° above the horizontal with a speed of 80.0 m/s. At the highest point of its trajectory, the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial speed. You can ignore air resistance. How far from the point of firing does the other fragment strike if the terrain is level? ? d = m Submit Request Answer Part B How much energy is released during the explosion? ΑΣφ ? E = J Submit Request Answer
11. A person pushes a m = 2.60 kg carton a distance d = 4.20 m along the floor by a constant force of magnitude F = 16.0 N directed at an angle 0 = 30.0° below the horizontal as shown in the figure. Assume the floor is frictionless. (a) Determine the work done on the carton by the applied force (the force on the carton exerted by the person). (b) Determine the work done on the carton by the normal force exerted by the floor. (c)Determine the work done on the carton by the gravitational force. (d)Determine the work done by the net force on the carton. m
3. Suppose you have an object attached to a bizarre spring, initially located at x = 0, the equilibrium point of the force of the spring on the object is given by F₁ = kx, S where k is a spring constant. (a) You displace the object from x = 0 to ₁ > 0, holding the object steady at the beginning and end. What is the work done by the spring? What is the work done by you? (b) You let go of the spring and observe the object move from location. x₁ to x2. Is x2 less than or greater than ₁? (c) What is the kinetic energy of the object at x2? (d) Is this bizarre spring realistic? Explain.
A 6.50 kg box slides 4) from the top of a ramp to the bottom at a constant speed, as shown in the diagram. constant v= 1.50 m/s h= 1.85 m 0= 28.2° a) How much work is done on the box by the frictional force? b) How much work is done on the box by gravity? c) How much work is done on the box by the normal force? d) What is the coefficient of kinetic friction between the box and the ramp?
14. A coin slides over a frictionless plane and across an y coordinate system from the origin to a point with ry coordinates (3.0 m, 4.0 m) while a constant force acts on it. The force has magnitude 2.0N and is directed at a counterclockwise angle of 100 from the positive direction of the r axis. How much work is done by the force on the coin during the displacement?
THANK YOU
4. A 75.0-kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to the floor above, a vertical height of 4.60 m. What is the work done on the man by (a) the gravitational force and (b) the escalator?
Rory carries a 150-N suitcase up three flights of stairs (a height of 3.5 m) and then drag it along the floor with a horizontal force of 40.0 N at a constant speed of 0.50 m/s through a distance of 5.0 meters. How much work does Rory do on his suitcase during this entire motion? 525 J 725J 200J 5,145 J