A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • 4 years ago

A mass m1 = 3.5 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 4.8 kg which hangs freely from the string. When released, the hanging mass falls a distance d = 0.71 m. 1) How much work is done by gravity on the two block system? 34 J (All of my answers are correct up to the last question, which I need help on) 2) 2) How much work is done by the normal force on m1? 0 J 3) What is the final speed of the two blocks? 2.84 m/s 4) How much work is done by tension on m1? 14.1 J 5) What is the tension in the string as the block falls? 19.9 N 7) What is the NET work done on m2? **** This is the question I need help on. I gave the answers to the previous questions because something in there might be needed for solving this part of the problem.

  • This Question is Closed
  1. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

  2. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Okay nm, got it. Just a rounding error in the velocity calculation. 7. is (0.5)(4.8)(2.84^2) = 19.4 J

  3. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...


  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.