Saturday
April 19, 2014

Homework Help: physics

Posted by Dan on Tuesday, April 2, 2013 at 4:00am.

I am helping my friend move into his new apartment. During the move, we have to load boxes into the back of his truck. To make it easier to load them, we've set up a metal ramp so that we can slide the boxes up to the deck of the truck. The box shown in the figure has a mass of 42.8 kg. The ramp has coefficients of friction given by μs = 0.3 and μk = 0.15. The ramp forms an angle of 44.7 degrees with the ground.



a) What is the minimum amount of tension I must apply to the rope to keep the box from sliding down the ramp? (The rope is parallel to the ramp.)

b) What is the minimum amount of tension I must apply to the rope to get the box to move up the ramp?

c) Once the box is moving up the ramp, how much tension must I apply to the rope to keep the box moving at a constant speed up the ramp?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - You and a friend are going to a river, where they have a rope swing. ...
physics - You and a friend are going to a river, where they have a rope swing. ...
physics - You are working in an ice skating rink and have been asked to hang a ...
Food and Nutrition - How can food spices be either an obstacle or an aid to ...
Website Design - I helping my friend to make personal website of like 10 pages. ...
Physics - In a physics study group, a friend says in a profound tone that light ...
calculus - Imagine that you live on an infinitely long and straight street ...
Grammar - I have a question when to start a new paragraph in first person ...
Science6 - why is it important to produce millions of new cells by the time you ...
Math help - 3. You recently started the paperwork to purchase your new home, and...

Search
Members