Solve Pulley Question Homework: Find Acceleration, Tension & Speed

  • Thread starter Thread starter student 1
  • Start date Start date
  • Tags Tags
    Pulley
AI Thread Summary
The discussion revolves around solving a physics homework problem involving two objects connected by a string over a frictionless pulley. The objects have masses of 2.00 kg and 6.00 kg, with an incline angle of 55 degrees. Participants emphasize the importance of drawing accurate free body diagrams and applying Newton's second law to determine the acceleration and tension in the string. They suggest analyzing the forces acting on each mass separately to derive the necessary equations. The conversation highlights the need for clarity in the diagrams to facilitate solving for acceleration and tension effectively.
student 1
Messages
76
Reaction score
0

Homework Statement


Two objects are connected by a light string that passes over frictionless pulley. Draw free body diagram of both objects. Assuming the incline is frictionless, m1= 2.00kg m2= 6.00 kg and the angle is 55. A. find the accelerations of the objects, B. the tension in the string. C. the speed of each object 2.00 seconds after they are released from rest.

The picture is a triangle with M2 sitting on the hypotenuse connected to the pulley and M1 hanging from the pulley. The angle that is 55 is not the one the pulley is on. I hope this helps!


Homework Equations





The Attempt at a Solution


The free body diagrams are confusing me and I have no clue where to go to find the acceleration even if I did have the right diagram drawn.
 
Physics news on Phys.org
Apply Newton's 2nd law to both objects and solve for a. Likewise, you can solve for T, as well.
 
How would you solve for T?
 
Hi student_1,

If it's the drawing of the free body diagrams that are giving you trouble, could you post a picture of what you got? Or at least describe how you drew them?

If you have the right diagrams, then what equations do you get from them (following konthelion's advice about using Newton's second law). You solve for a and T from those equations.
 
Look at each mass seperately and use Newton's 2nd law to find the acceleration. So determine which forces are acting on each object and then you will be able to solve for acceleration.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Olympiad dynamics problem with 3 masses and a pulley
Replies
17
Views
2K
Tension in a string which connects 3 pulleys
Replies
12
Views
1K
Using Effective Mass to find the accelerations of 3 masses connected by pulleys
Replies
25
Views
3K
Calculating tensions and acceleration
Replies
10
Views
2K
Solve Pulley-Mass System: m1=4.00 kg, m2=1.00 kg
Replies
2
Views
1K
Angular Acceleration and Linear Acceleration of a Pulley
Replies
4
Views
2K
Object causing another object to move with zero friction
Replies
3
Views
2K
Pulley system, find the acceleration and tension
Replies
40
Views
5K
Calculate the initial acceleration of this pulley system
Replies
8
Views
2K
Peculiar Acceleration: Solving a Massless and Frictionless Pulley Problem
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top