Tractive force exerted by a lorry

  • Thread starter Thread starter pattricez
  • Start date Start date
  • Tags Tags
    Force
Click For Summary
SUMMARY

The discussion focuses on calculating the tractive force exerted by a lorry with a mass of 12,500 kg, accelerating at 0.1 m/s² up a hill with a gradient of 1:6. The resistance to motion is specified as 2,000 N. Participants emphasize the importance of using a free body diagram to identify all forces, including gravitational components and motion resistance, to derive the total tractive force. The calculation involves decomposing the weight vector into trigonometric components to account for the incline.

PREREQUISITES
  • Understanding of Newton's Second Law of Motion
  • Knowledge of vector decomposition and trigonometric functions
  • Familiarity with free body diagrams
  • Basic principles of forces acting on inclined planes
NEXT STEPS
  • Study vector decomposition techniques in physics
  • Learn how to draw and analyze free body diagrams
  • Explore the effects of incline on gravitational force components
  • Review Newton's laws in the context of motion resistance
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators looking for practical examples of force calculations involving inclined planes.

pattricez
Messages
1
Reaction score
0
Hey would really appreciate help with this question, thanks :)

A lorry, of mass 12500kg, starts from rest up a hill. The hill has a gradient of 1:6 and the lorry accelerates at a constant rate of 0.1m/s2. If the resistance to motion, not the gravitational resistance, of the lorry is 2000N, what is the tractive force of the lorry?

thanx again
 
Engineering news on Phys.org
This thread should go to the homework section.

Start with a freebody diagram, can you tell all the forces involved ?

How can you relate the given mass and the given resultant acceleration ?

How can you relate self weight, slope effect on weight vector components, motion resistance and the resultant net acceleration ?
 
The total tractive force will be the component of the lorry's weight pointing parallel to the incline and the acceleration force. Do you remember how to decompose a vector force into trigonometric components?
 

Similar threads

How to Calculate Forces and Distances for Loaded and Unloaded Lorries?
  • · Replies 12 ·
Replies
12
Views
2K
How Does Mass Affect Acceleration and Deceleration in a Lorry?
  • · Replies 3 ·
Replies
3
Views
2K
How Do You Calculate Tractive Force for Accelerating a Car?
  • · Replies 40 ·
2
Replies
40
Views
8K
How Do You Calculate Forces and Motion for Loaded and Unloaded Lorries?
  • · Replies 1 ·
Replies
1
Views
2K
Tractive Force = 3554 N"Racing Car Acceleration: Find the Tractive Force
  • · Replies 3 ·
Replies
3
Views
2K
Force required to accelerate upward against gravity
  • · Replies 20 ·
Replies
20
Views
6K
Calculating Tractive Force using two methods
  • · Replies 3 ·
Replies
3
Views
6K
Calculating Resultant Forces: Salt Deposition, Aircraft Loops, and Lorry Bends
  • · Replies 2 ·
Replies
2
Views
2K
Distance travelled whilst decelerating
  • · Replies 47 ·
2
Replies
47
Views
8K
Problem with the power of car
  • · Replies 3 ·
Replies
3
Views
1K