Collision and friction question

Click For Summary
SUMMARY

The discussion centers on an inelastic collision between a steel block (mass m1) traveling at velocity v1 and a concrete barrier (mass m2) at rest. The friction coefficients are 0.1 for the steel block and 0.6 for the concrete barrier. The key question is whether the total frictional force acting during the 0.1m travel distance is calculated as m1*g*0.1 + m2*g*0.6 or as (m1+m2)*g*0.6. The consensus leans towards the latter calculation, indicating that the combined mass should be used to determine the frictional force acting on both objects post-collision.

PREREQUISITES
  • Understanding of inelastic collisions and momentum conservation
  • Knowledge of frictional force calculations
  • Familiarity with basic physics equations involving mass and gravity
  • Concept of coefficient of friction and its application
NEXT STEPS
  • Study the principles of inelastic collisions in detail
  • Learn how to calculate frictional forces in various scenarios
  • Explore the effects of different coefficients of friction on motion
  • Investigate real-world applications of collision physics in engineering
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators and professionals involved in engineering and physics-related fields.

el_diablo549
Messages
10
Reaction score
0

Homework Statement


This is just a question relating to an assignment I am doing, if a steel block mass m1 traveling at velocity v1 and friction of 0.1 hits a concrete barrier traveling at 0 with mass m2 with friction 0.6. they have an inelastic collision and travel 0.1m together.

Homework Equations


frictional force = mg*coefficient of friction
g=gravity=9.81m/s

The Attempt at a Solution


for this period of travel, is the friction force acting on the both items = m1*g*0.1+m2*g*0.6
or is it
(m1+m2)g*0.6?
 
Last edited:
Physics news on Phys.org
I would guess the former.
 

Similar threads

Replies
5
Views
3K
  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 20 ·
Replies
20
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 19 ·
Replies
19
Views
12K