Which calculation should i use?@_@

  • Thread starter Thread starter shakie_ija
  • Start date Start date
  • Tags Tags
    Calculation
Click For Summary
SUMMARY

The discussion focuses on calculating the forces acting on a 1.4 kg bottle of milk resting on two surfaces, with one surface inclined at a 45-degree angle. The participants explore the application of Newton's second law (f=ma) and gravitational force (w=mg) to determine the magnitude of the forces exerted by each surface. The need to analyze vertical components and resultant forces using trigonometric functions (cosine and sine) is emphasized as essential for accurate calculations.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Basic knowledge of trigonometry, specifically sine and cosine functions
  • Familiarity with force diagrams and free-body diagrams
  • Concept of gravitational force and weight calculation
NEXT STEPS
  • Study the application of Newton's second law in static equilibrium scenarios
  • Learn how to construct and analyze free-body diagrams for complex systems
  • Research the principles of vector resolution in physics
  • Explore examples of force calculations involving inclined planes
USEFUL FOR

Students in physics courses, educators teaching mechanics, and anyone interested in understanding force calculations in static systems.

shakie_ija
Messages
1
Reaction score
0
which calculation should i use??@_@

Homework Statement


a 1.4 kg bottle of milk is lying horizontally in the rack. the two surfaces on which the bottle rest r 900 apart, and the right surface makes an angle of 450 with the respect to the ground. each surface exerts a force on the bottle that is perpedicular to the surface. determine the magnitude of each of these forces
* the bottle is lying 90 degree vertically


Homework Equations



f=ma?
w=mg?
or should i find the resultant force by using cos and sine


The Attempt at a Solution


ive tried..but all the answer are different..
 
Physics news on Phys.org


Call the force exerted by each surface on the bottle F. What other forces act on the bottle? What's the net force on the bottle? Consider vertical components.
 

Similar threads

How can the density of air be measured using simple equipment?
  • · Replies 4 ·
Replies
4
Views
2K
Equilibrium of a stiff plate on inclined planes
  • · Replies 31 ·
2
Replies
31
Views
5K
Should I Use the Total Length of an Object to Calculate Buoyancy?
  • · Replies 10 ·
Replies
10
Views
11K
How can I know which law of force should be use to calculate....
  • · Replies 12 ·
Replies
12
Views
2K
How to Determine the Work Done by the Rope on a Sledge?
  • · Replies 5 ·
Replies
5
Views
2K
Calculation of the weight of an insect floating by surface tension
  • · Replies 1 ·
Replies
1
Views
3K
Which forces am I missing in the FBDs?
  • · Replies 9 ·
Replies
9
Views
2K
Calculating Normal Force and Acceleration in Dynamics Physics - Urgent Help
  • · Replies 2 ·
Replies
2
Views
2K
Two linebackers simultaneously hit a quarterback: Force Diagram
  • · Replies 15 ·
Replies
15
Views
2K
Newton's Second Law Rocket Problem
  • · Replies 13 ·
Replies
13
Views
2K