Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
yrelhan4
Group Title
Two blocks of masses m1=2kg and m2=5kg hang over a massless pulley as in the figure. A force F=100N acting on the axis of the pulley accelerates the system upward. Find : a) the acceleration of each block b) the tension in the string.
 one year ago
 one year ago
yrelhan4 Group Title
Two blocks of masses m1=2kg and m2=5kg hang over a massless pulley as in the figure. A force F=100N acting on the axis of the pulley accelerates the system upward. Find : a) the acceleration of each block b) the tension in the string.
 one year ago
 one year ago

This Question is Closed

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
answer: 2 kg block accelerates 15.2 m/s^2 upward the 5 kg block accelerates .2 m/s^2 upward
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
30/7 ? g=10m/s2
 one year ago

3psilon Group TitleBest ResponseYou've already chosen the best response.0
How would this problem be done with the force acting on the axis? that is new to me
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
@3psilon it just means the system is pulled by a force upwards, i guess.
 one year ago

3psilon Group TitleBest ResponseYou've already chosen the best response.0
ok let me fool around with it and I'll see if I get that answer
 one year ago

3psilon Group TitleBest ResponseYou've already chosen the best response.0
So usually in an Atwell problem like this the acceleration is the same right? But I guess that force changes the acceleration of both?
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
yes.. acceleration of both the blocks without the force is 30/7 m/s2 .. if that could help..
 one year ago

VincentLyon.Fr Group TitleBest ResponseYou've already chosen the best response.1
Actually, this problem is simpler than an Atwood machine. Since the pulley is massless, it is very easy to find the tension in the string, and the accelerations of M1 and M2.
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
what about the force on the pulley?
 one year ago

VincentLyon.Fr Group TitleBest ResponseYou've already chosen the best response.1
Apply N's 2nd law to the pulley.
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
the pulley is massless..
 one year ago

VincentLyon.Fr Group TitleBest ResponseYou've already chosen the best response.1
Makes it even easier!
 one year ago

VincentLyon.Fr Group TitleBest ResponseYou've already chosen the best response.1
If a massless body is accelerating, what will be the net force on it?
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
@VincentLyon.Fr what would i get after applying nlm to pulley?
 one year ago

VincentLyon.Fr Group TitleBest ResponseYou've already chosen the best response.1
Tension in the string... and the problem is done.
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
i'll try .. i think i got it somewhat..
 one year ago

VincentLyon.Fr Group TitleBest ResponseYou've already chosen the best response.1
It is VERY easy, not joking!
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
yeah.. thank you!
 one year ago
See more questions >>>
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...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 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.