Need help with 13 please 12. An athlete stretches his Achilles tendon by extending one leg behind him with his heel on the floor and pushingagainst the wall with a force of 120 N at an angle of 20° from the horizontal. Write the force vector F incomponent form. Round the components to the nearest tenth of a Newton. (Taken from page 740 #80. Seetext for picture.)13. Find the amount of work done if an object is pushed horizontally 70 m by a force of 25 N directed 60° above thehorizontal. (Taken from page 754 #74.)14. The components of n = (4,2) represent the numbers of tacos and drinks, respectively, that a restaurant patronhad for lunch. The components of c = (120,90) represent the number of calories per taco and number ofWtv20く

Answered: Image /qna-images/answer/f96ca6d1-0a92-49dc-878c-775864642e81.jpg

Answered: Find the amount of work done if an…

Find the amount of work done if an object is pushed horizontally 70 m by a force of 25 N directed 60° above the horizontal. (Taken from page 754 #74.)

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section: Chapter Questions

Problem 80A

See similar textbooks

Related questions

Q: A child pulls on a wagon with a horizontal force of 75N. If the wagon moves horizontally a total of…

Q: DP-1 A 7.50kg box is pushed 1.70m along a frictionless P=20.0N horizontal table top by a constant…

A: Solution Given Data : distance travelled by box '∆x' = 1.70m Work done by force 'p' is 'W' = 25.0J…

Q: A gardener pushes a lawn roller through a distance of 25m. If he applies a force of 20N in a…

Q: A block of mass m=2.50 kg is pushed a distance d=2.20 m along a frictionless, horizontal table by a…

A: Given a block mass m= 2.5k Distance d=2.2 Force f=16 We have to find the work done on the block by…

Q: A 2.5 kg mass is initially at rest on a horizontal surface. An applied force acts in the +x…

A: Given, Mass 'm' = 2.5 kg displacement 'd' = 1.5 m final speed 'v' = 4 m /s at distance of 150 m…

Q: The work done by a force that varies in magnitude can be obtained from which of the following…

Q: How much work does gravity do on a 2.5-mg raindrop as the drop falls to the ground from a cloud 2200…

A: Answer 5.39*10-5 J

Q: A force with a magnitude of 25 N and directed at an angle of 37° above the horizontal is used to…

Q: How much work is required to move an object from x = 0 to x = 5 (measured in meters) in the presence…

Q: A particle of mass 6 kg is constrained to move along the trajectory y(x) = -8 x2 + 49 (m). If the…

Q: If a 50 kg object initially at rest is displaced 25 m by a constant net force of 600 N in the…

A: Work done is equal to change in kinetic energy of the body . Work done = (Force)*(displacement)…

Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.850 m/s encounters a rough horizontal…

Q: While rearranging a dorm room, a student does 323 J of work in moving a desk 2.6 m. What was the…

A: Ans:- Work:- The work done by a constant force acting on an object is equal to the displacement…

Q: Find the work done by 45N force in pulling the suitcase at an angle of 50d egrees with respect to…

Q: A shopper in a supermarket pushes a trolley with a force of 30N directed at an angle of 25° downward…

A: Given : F = 30 N θ = 25° d = 40 m

Q: A block of mass m 2.50 kg is pushed a distance d= 2.20 m along a frictionless horizontal table by a…

A: a)Work done is calculated for the above arrangement as,

Q: Calculate the work done by a mother who exerts a force of 8 N at an angle of 40° below the…

A: Given* The force exerts By mother is F = 8N* The angle at which force is applied is θ=40°* The…

Q: A block of mass 3.57 kg is drawn at constant speed a distance 4.06 meters along a horizontal floor…

A: Given, Mass of block m = 3.57 Kg Distance d = 4.06 m Force F = 7.68 N Angle θ=15∘

Q: A particle of mass 6 kg is constrained to move along the trajectory y(x) = -5 x2 + 10 (m). If the…

A: Given trajectory: y(x)=-5x2+10 (m)∴dy=-10x _______(1) Force: F=7 N (constant) Displacement…

Q: 6. A constant horizontal force of magnitude 2.00 [N] is exerted in pushing a box a distance = 13.0…

A: Given: The magnitude of the horizontal force is 2 N. The displacement of the object is 13 m along…

Q: A block of mass m = 3.1 kg is placed on a rough incline surface making an angle e = 13.5- with…

A: Given data The block's mass is m = 3.1 kg The angle of inclination is θ = 13.5° The distance moved…

Q: A big man is towing a large box with a cord that makes an angle of 25 degreeswith the horizontal.The…

A: Force applied on box = 100 N displacement of box = 2 meter angle between force and displacement…

Q: Suppose you drag a box 8.0 m across a horizontal floor, exerting a force of 90. N at 35 degrees…

Q: Several forces are applied to an object. If the object moves 40 m along the horizontal, and if one…

A: Given: The distance moved by an object is d=40 m. The force in the opposite direction of motion is…

Q: You drag your 30 kg suitcase 1200 m thru the Chicago airport at essentially constant velocity 2.0…

Q: Acrate is moved 2 meters along a horizontal floor at a constant speed by force of 50 N which makes…

A: Given data: Force (F) = 50 N Distance (d) = 2 m Angle (θ) = 30° above the horizontal Required:…

Q: How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and…

A: Answer Given Initial speed of the car vi = 155 km/h We have to change the value into m/s 155 km/h =…

Q: A mass of 60 kg is moved vertically upwards through a distance of 6 m. If the gravitational…

A: Mass, m = 60 kg Distance, d = 6 m

Q: A 7.50kg box is pushed 1.70m along a frictionless horizontal table top by a constant force directed…

A: Given data: Mass of box (m) = 7.50 kg Force (P) = 20.0 N Displacement (Δx) = 1.70 m Work done (W) =…

Q: A ball with a mass of 4.25kilograms slides in an inclined plane with an angle of 38 degrees from the…

Q: ,2 54. A 5.0-kg box has an acceleration of 2.0 m/s when it is pulled by a horizontal force across a…

Q: An object in a horizontal surface was moved by applying a constant force (N), F = 16i + 10j. If the…

A: Given:Force, F=16i⇀+10j⇀displacement,x=5 mTo find:a) Work done, W=?b) Angle at which the force is…

Q: An object in a horizontal surface was moved by applying a constant force (N), F = 16i + 10j. If the…

Q: A cable exerts a constant upward tension of magnitude 2.26 ✕ 104 N on a 2.00 ✕ 103 kg elevator as it…

A: Write the equation for work done

Q: Is the work done by the applied force positive or negative when a heavy body is lowered to the…

A: Let h be the height at which the body is initially, F be the applied force, W be the work done by…

Q: A truck has a gross weight of 1.0 x 106 N. Assuming that the concrete road has a coefficient of…

Q: A force of 15 pounds, exerted at an angle of 50 degrees with the horizontal, is required to slide an…

A: The free-body diagram of the object is shown below. Here, F is the applied force.

Q: An object in a horizontal surface was moved by applying a constant force (N), F = 16i + 10j. If the…

Q: A force = (8x + 7y ) N acts on an object as if moves in the x direction from the origin to x = 7.00…

A: Let the work done is given by W Let the force acting on the object is given by F Let the…

Q: A block of wood of mass 2.6 kg is moved up along 8.9 m incline from rest by applying a horizontal…

A: Consider the free body diagram shown below.

Q: A 4.8 kg box has an acceleration of 1.8 m/s when it is pulled by a horizontal force across a surface…

A: Given that,mass, m=4.8 kgacceleration, a=1.8 ms2μk=0.50work done over distance=22 cmd=0.22 m…

Q: A person holds a bundle of hay over his head for 30 minutes and gets tired. Has he done some work or…

A: Work is done whenever the given two conditions are satisfied: a force acts on the body. there is a…

Q: How high a hill can a car coast up (engine disengaged) if work done by friction is negligible * and…

A: Given data: Initial Speed of the car (V0) = 155 km/h Free falling acceleration (g) = 10 m/s2…

Q: Hk=0.38. If the speed of the block v=7m/s when it leaves the inclined plane, determine the work done…

A: Given data: The mass of block is m=1.64 kg. Coefficient of friction is μk=0.38. Velocity of block…

Q: Find the work done in joules by gravity as an object of the mass m 5 kg is raised up at constant…

A: Mass of object m = 5 kg Initial height h1 = 26 m Final height h2 = 69 m g = 10 m/s²

Q: A box is supported by a 5.2 N vertical force and carried 2.3 m horizontally across a room at…

A: Work done by a force F in displacing an object by some distance 's' is given by- W=F.s=Fscos(θ)…

Question

Need help with 13 please

12. An athlete stretches his Achilles tendon by extending one leg behind him with his heel on the floor and pushing
against the wall with a force of 120 N at an angle of 20° from the horizontal. Write the force vector F in
component form. Round the components to the nearest tenth of a Newton. (Taken from page 740 #80. See
text for picture.)
13. Find the amount of work done if an object is pushed horizontally 70 m by a force of 25 N directed 60° above the
horizontal. (Taken from page 754 #74.)
14. The components of n = (4,2) represent the numbers of tacos and drinks, respectively, that a restaurant patron
had for lunch. The components of c = (120,90) represent the number of calories per taco and number of
W
tv
20
く

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 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

Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.
Does the work you do on a book when you lift it onto a shelf depend on the path taken? On the time taken? On the height of the shelf? On the mass of the book?
A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5.0 m. 11 a friction force of 43 N acts on the wheelbarrow in a direction opposite that of the worker, what work is done on the wheelbarrow by the worker? (a) 250 J (b) 215 (c) 35 J (d) 10 J (e) None of those answers is correct.
Describe the energy transfers and transformations for a javelin, stating from the point at which an athlete picks up the javelin and ending when the javelin is stuck into the ground after being thrown.
What average power is generated by a 70.0-kg moun-tain climber who climbs a summit of height 325 in in 95.0 min? (a) 39.1 W (b) 54.6 W (c) 25.5 W (d) 67.0 W (e) 88.4 W
The force acting on a panicle varies as shown in Figure la P7.14. Find the work done by the force on the particle as it moves (a) from x = 0 to x = 8.00 m. (b) from x = 8.00 m to x = 10.0 m, and (c) from x = 0 to x = 10.0 m.
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance?
Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 20.0 m above water with an initial speed of 15.0 m/s strikes the water with a speed of 24.8 m/s independent of the direction thrown.
A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30 s?
A car accelerates uniformly from rest. Ignoring air friction, when does the car require the greatest power? (a) When the car first accelerates from rest, (b) just as the car reaches its maximum speed, (c) when the car reaches half its maximum speed. (d) The question is misleading because the power required is constant. (e) More information is needed.
Describe a situation in which a force is exerted for a long time but does no work. Explain.
The surface of the preceding problem is modified so that the coefficient of kinetic friction is decreased. The same horizontal force is applied to the crate, and after being pushed 8.0 m, its speed is 5.0 m/s. How much work is now done by the force of friction? Assume that the crate starts at rest.