Pulling block up incline with winch.

Click For Summary

Homework Help Overview

The discussion revolves around a physics problem involving a 1200 kg block of granite being pulled up an incline at a constant speed by a steam winch. The incline has an angle of 23 degrees, and the coefficient of kinetic friction is 0.14. Participants are tasked with determining the power required by the winch.

Discussion Character

  • Exploratory, Problem interpretation, Assumption checking

Approaches and Questions Raised

  • Participants discuss the forces acting on the block, including tension, friction, and gravitational force. There are attempts to establish a force diagram and equations to analyze the situation. Questions arise about how to balance these forces given the constant speed of the block.

Discussion Status

The discussion is ongoing, with participants exploring the relationships between the forces involved. Some guidance has been offered regarding drawing force diagrams and writing force equations, but no consensus or resolution has been reached yet.

Contextual Notes

Participants are working under the constraints of a homework problem, which may limit the information available for analysis. There is an emphasis on understanding the forces at play without providing direct solutions.

bkhofmann
Messages
17
Reaction score
0

Homework Statement


A 1200 kg block of granite is pulled up an incline that has an angle of inclination q = 23 ° with a constant speed of 1.23 m/s by a steam winch (see Figure). The coefficient of kinetic friction between the block and the incline is 0.14. How much power must be supplied by the winch?



Homework Equations



(That I know of) P=TxV

The Attempt at a Solution


I need help finding the tension in the cable between the winch and block. Thanks in advance!
 
Physics news on Phys.org
bkhofmann said:

Homework Statement


A 1200 kg block of granite is pulled up an incline that has an angle of inclination q = 23 ° with a constant speed of 1.23 m/s by a steam winch (see Figure). The coefficient of kinetic friction between the block and the incline is 0.14. How much power must be supplied by the winch?

Homework Equations



(That I know of) P=TxV

The Attempt at a Solution


I need help finding the tension in the cable between the winch and block. Thanks in advance!

Welcome to PF.

Draw a force diagram. What forces are there? What forces are there along the line of the Tension in the cable that needs to be overcome?
 
Forces in the X direction are friction and weight (MG) and of course T which we need to find. I', just stuck on how to use these.
 
bkhofmann said:
Forces in the X direction are friction and weight (MG) and of course T which we need to find. I', just stuck on how to use these.

OK. Write a force equation. What must be balanced if it is not accelerating, but moving at constant speed?
 
The force of friction and mg and the pulling force.
 

Similar threads

  • · Replies 27 ·
Replies
27
Views
10K
  • · Replies 4 ·
Replies
4
Views
1K
  • · Replies 5 ·
Replies
5
Views
3K
Replies
13
Views
3K
  • · Replies 12 ·
Replies
12
Views
13K
  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 5 ·
Replies
5
Views
7K
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K