Physics: mover's dolly transports a refrigerator up a ramp
Not what you're looking for?
A mover's dolly is used to transport a refrigerator up a ramp into a house. The refrigerator has a mass of 108 kg. The ramp is 2.10 m long and rises 0.850 m. The mover pulls the dolly with a force of 508 N up the ramp. The dolly and ramp constitute a machine.
(a) What work does the mover do?
________ J
(b) What is the work done on the refrigerator by the machine?
________ J
(c) What is the efficiency of the machine?
__________ %
Purchase this Solution
Solution Summary
The expert examines how mover's use a dolly to transport a refrigerator up a ramp.
Solution Preview
a.
Work done by the mover = Applied force * distance that he pulls the refrigerator-dolly ...
Purchase this Solution
Free BrainMass Quizzes
The Moon
Test your knowledge of moon phases and movement.
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.
Basic Physics
This quiz will test your knowledge about basic Physics.