An 7.6 kg crate is pulled 4.7 m up a 30° incline by a rope angled 18° above the incline. The tension in the rope is 140 N and the crate's coefficient of kinetic friction on the incline is 0.24. For help with math skills, you may want to review: The Vector Dot Product Part A How much work is done by tension, by gravity, and by the normal force? Express your answers in joules to two significant figures. Enter your answers numerically separated by commas. ► View Available Hint(s) ΠΗΓΙ ΑΣΦ WT, WG, W₁ = Submit Part B What is the increase in thermal energy of the crate and incline? Express your answer in joules to two significant figures. ► View Available Hint(s) [5] ΑΣΦ AEth= Submit ? ? J J

An 7.6 kg crate is pulled 4.7 m up a 30° incline by a rope angled 18° above the incline. The tension in the rope is 140 N and the crate's coefficient of kinetic friction on the incline is 0.24. For help with math skills, you may want to review: The Vector Dot Product Part A How much work is done by tension, by gravity, and by the normal force? Express your answers in joules to two significant figures. Enter your answers numerically separated by commas. ► View Available Hint(s) ΠΗΓΙ ΑΣΦ WT, WG, W₁ = Submit Part B What is the increase in thermal energy of the crate and incline? Express your answer in joules to two significant figures. ► View Available Hint(s) [5] ΑΣΦ AEth= Submit ? ? J J

Name: An 7.6 kg crate is pulled 4.7 m up a 30° incline by a rope angled 18°
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: An 7.6 kg crate is pulled 4.7 m up a 30° incline by a rope angled 18° above theincline. The tension in the rope is 140 N and the crate's coefficient of kinetic frictionon the incline is 0.24.For help with math skills, you may want to review: The Vec

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 67P: A person in good physical condition can put out 100 W of useful power for several hours at a...

See similar textbooks

Similar questions

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.
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.
As a young man, Tarzan climbed up a vine to reach his tree house. As he got older, he decided to build and use a staircase instead. Since the work of the gravitational force mg is path Independent, what did the King of the Apes gain in using stairs?
An electric scooter has a battery capable of supplying 120 Wh of energy. If friction forces and other losses account for 60.0% of the energy usage, what altitude change can a rider achieve when driving in hilly ter-rain if the rider and scooter have a combined weight of 890 N?
A cart is pulled a distance D on a flat, horizontal surface by a constant farce F that acts at an angle with the horizontal direction. The other forces on the object during this time are gravity (Fw) , normal forces (FN1) and (FN2) , and rolling frictions Fr1 and Fr2 , as shown below What is the work done by each force?
Cite two examples in which a force is exerted on an object without doing any work on the object.
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?
(a) What is the average useful power output of a person who does 6.00106J of useful work in 8.00 h? (b) Working at this rate, how long will it take this person to lift 2000 kg of bricks 1.50 m to a platform? (Work done to lift his body can be omitted because it is not considered useful output here.)
What is the dominant factor that affects the speed of an object that started from rest down a frictionless incline if the only work done on the object is from gravitational forces?
A force F = (6i 2j) N acts on a panicle that under-goes a displacement r = (3i + j) m. Find (a) the work done by the force on the particle and (b) the angle between F and r.
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.
Two forces act to double the speed of a particle, initially moving with kinetic energy of 1 J. One of the forces does 4 J of work. How much work does the other force do?