A crate with a mass of 64.0 kg is pulled up an inclined surface by an attached rope, which is driven by a motor. The crate moves a distance of 55.0 m along the surface at a constant speed of 1.5 m/s. The surface is inclined at an angle of 30.0° with the horizontal. Assume friction is negligible. (a) How much work (in kJ) is required to pull the crate up the incline? kJ (b) What power (expressed in hp) must a motor have to perform this task? hp

A crate with a mass of 64.0 kg is pulled up an inclined surface by an attached rope, which is driven by a motor. The crate moves a distance of 55.0 m along the surface at a constant speed of 1.5 m/s. The surface is inclined at an angle of 30.0° with the horizontal. Assume friction is negligible. (a) How much work (in kJ) is required to pull the crate up the incline? kJ (b) What power (expressed in hp) must a motor have to perform this task? hp

Name: **Problem Statement:**A crate with a mass of 64.0 kg is pulled up an
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: **Problem Statement:**A crate with a mass of 64.0 kg is pulled up an inclined surface by an attached rope, which is driven by a motor. The crate moves a distance of 55.0 m along the surface at a constant speed of 1.5 m/s. The surface is inclined at

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

Similar questions

A cable exerts a constant upward tension of magnitude 2.70 ✕ 104 N on a 2.40 ✕ 103 kg elevator as it rises through a vertical distance of 2.90 m. HINT (a) Find the work done by the tension force on the elevator (in J). J (b) Find the work done by the force of gravity on the elevator (in J).
Starting from rest, a 5.40-kg block slides 3.40 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is µ, = 0.436. (a) Determine the work done by the force of gravity. (b) Determine the work done by the friction force between block and incline. (c) Determine the work done by the normal force. (d) Qualitatively, how would the answers change if a shorter ramp at a steeper angle were used to span the same vertical height?
A cable exerts a constant upward tension of magnitude 2.06 X 104 N on a 1.80 X 10³ kg elevator as it rises through a vertical distance of 4.10 m. (a) Find the work done by the tension force on the elevator (in J). (b) Find the work done by the force of gravity on the elevator (in J).
A sledge loaded with bricks has a total mass of 18.6 kg and is pulled at constant speed by a rope inclined at 20.8° above the horizontal. The sledge moves a distance of 20.9 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension in the rope? (b) How much work is done by the rope on the sledge? kJ (c) What is the mechanical energy lost due to friction? kJ
A crate with a mass of 35.0 kg is pushed with a horizontal force of 150 N. The crate moves at a constant speed across a level, rough surface a distance of 5.30 m. (a) What is the work done (in J) by the 150 N force? J (b) What is the coefficient of kinetic friction between the crate and the surface?
A cable exerts a constant upward tension of magnitude 1.66 ✕ 104 N on a 1.40 ✕ 103 kg elevator as it rises through a vertical distance of 2.30 m. (a)Find the work done by the tension force on the elevator (in J). (b) Find the work done by the force of gravity on the elevator (in J).
A skier of mass 61 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 80 m up a 30° slope (assumed frictionless) at a constant speed of 2.9 m/s? KJ (b) What power (expressed in hp) must a motor have to perform this task? hp
A sledge loaded with bricks has a total mass of 18.8 kg and is pulled at constant speed by a rope inclined at 19.0° above the horizontal. The sledge moves a distance of 20.5 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension in the rope? N (b) How much work is done by the rope on the sledge? kJ (c) What is the mechanical energy lost due to friction? k]
A skier of mass 77 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull hìm 45 m up a 30° slope (assumed frictionless) at a constant speed of 1.9 m/s? kJ (b) What power (expressed in hp) must a motor have to perform this task? hp
A tension force of 155 N inclined at 30.0° above the horizontal is used to pull a 35.0 kg shipping crate a distance of 5.10 m on a rough surface. If the crate moves at a constant speed, find (a) the work done by the tension force and (b) the coefficient of kinetic friction between the crate and surface. HINT (a) the work done by the tension force (in J) 688 Forces in the direction of an object's displacement do positive work on the object and tend to increase the object's speed. J (b) the coefficient of kinetic friction between the crate and surface -0 005 Need Help? Read It Watch it
A sledge loaded with bricks has a total mass of 18.1 kg and is pulled at constant speed by a rope inclined at 20.5° above the horizontal. The sledge moves a distance of 19.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension in the rope?N(b) How much work is done by the rope on the sledge?kJ(c) What is the mechanical energy lost due to friction?kJ
A person pulls a toboggan for a distance of 37.8 m along the snow with a rope directed 21.5 ° above the snow. The tension in the rope is 88.2 N. (a) How much work is done on the toboggan by the tension force? (b) How much work is done if the same tension is directed parallel to the snow?