Working with a block-pulley system
Not what you're looking for?
Please see the attached file for full problem description.
Please use work concepts for solution. The solution should involve integration from 2 to 0 distance block travel.
Please detail any calculus involved - if the response doesn't involve calculus, I would still like to see it, but please explain why since I am fairly certain that calculas and work concepts should be involved.
Purchase this Solution
Solution Summary
The solution gives all steps along with proper explanations so that you can solve similar problems yourself. All mathematical steps are clearly shown.
Solution Preview
The work-energy principle states that the net work done on an object is equal to its change in kinetic energy,
W = d(KE) ----(1)
We are releasing the block from rest. Thus the initial KE = 0 and it will acquire some KE after some time.
Thus, W = KE_final - KE_initial = Final KE
Thus we have to find the work done by the force to pull the block up the incline through a distance of 2ft.
We have, work done = force * distance moved
We have 30 lb force applied downwards on the hanging pulley therefore, tension (T) on each side of the pulley will be 30/2 = 15 lb
The force acting on the block will be ...
Purchase this Solution
Free BrainMass Quizzes
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.
The Moon
Test your knowledge of moon phases and movement.
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.
Basic Physics
This quiz will test your knowledge about basic Physics.
Variables in Science Experiments
How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.