A 60.5 kg mass is to be lifted 1.20 meters using a ramp that makes an angle of 9.75 degrees with the horizontal. If the coefficient of kinetic friction is .390, find the MA, VR, and % efficiency for the system.

A 60.5 kg mass is to be lifted 1.20 meters using a ramp that makes an angle of 9.75 degrees with the horizontal. If the coefficient of kinetic friction is .390, find the MA, VR, and % efficiency for the system.

Name: A 60.5 kg mass is to be lifted 1.20 meters using a ramp that makes an
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: A 60.5 kg mass is to be lifted 1.20 meters using a ramp that makes an angle of 9.75 degrees with the horizontal. If the coefficient of kinetic friction is .390, find the MA, VR, and % efficiency for the system.

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 68A

See similar textbooks

Similar questions

What is the cost of operating a 3.00-W electric clock for a year if the cost of electricity is 0.0900 per kWh ?
An inclined plane at an angle of 15o is used to lift a 250 kg sofa through a vertical height of 5 meters. If the coefficient of kinetic friction is 0.12, what is the Mechanical Advantage, Ideal Mechanical Advantage, and efficiency of the plane?
allison exerts a force of 186 N on a lever to raise a 2.70 x 10^3 N object to a height of 29.0 cm. If the efficiency of the lever is 83.3 percent, how far does Ayesha move her end of the lever?
The basis of muscle action is the power stroke of the myosin protein pulling on an actin filament. It takes the energy of one molecule of ATP, 5.1 × 10-20 J, to produce a displacement of 10 nm against a force of 1.0 pN. What is the efficiency?
When using an inclined plane with an angle Θ from horizontal as a machine to lift an object, and given a coefficient of friction μ for the surface of the incline, show that the efficiency of the plane is given by the mathematical expression shown with the label
A steam engines raises a 1800 kg mass vertically at the rate of 9 m/s. What is the power of the engine assuming an efficiency of 70%? The correct answer is 227 kW.
A motor operates at its rated load of 10hp for 8hrs a day. Its efficiency is 87%. What is the daily cost operation if electric energy costs $0.10/kw-hr?
Under what conditions is the work done i) maximum and ii) minimum?
A pulley system made up of 3 pulleys, is used to lift a load of 10kg through a height of 50cm. If the effort required is 2.5 kgf, find the height moved by the effort and the efficiency.
What is the efficiency of a subject on a treadmill who puts out work at the rate of 110 W while consuming oxygen at the rate of 2.00 L/min?(Hint: If the oxygen consumption is 2.00 L/min,then the power input is 700 W.)
Water is lifted out of a well 20.0 mm deep by a motor rated at 1.10 hp. Assuming efficiency 85 % , how many kilograms of water can be lifted in 1 min?
A simple wheel and axle has a wheel diameter of 3m and an axle diameter of 25cm. What effort is required to lift 850kg if the efficiency is 87%?