Register to reply

Resolving forces

by CathyLou
Tags: forces, resolving
Share this thread:
CathyLou
#1
Sep29-07, 11:57 AM
P: 173
Hi.

Could someone please show me how to draw the diagram for the following question as I am really stuck. I would really appreciate any help.

I have already drawn a diagram but must have labelled the forces incorrectly as my subsequent answers do not match the ones in the back of the textbook.

Forces P, Q, R and S act on a particle at O in the plane of the coordinate axes Ox, Oy, making angles p, q, r, s respectively with Ox, each angle being measured in the anticlockwise sense. Find the magnitude of the resultant and the angle it makes with Ox when:

(a) P = 2N, Q = 3N, R = 4N, S = 5N p = 0, q = 40, r = 100, s = 150


Thank you.

Cathy
Phys.Org News Partner Science news on Phys.org
FIXD tells car drivers via smartphone what is wrong
Team pioneers strategy for creating new materials
Team defines new biodiversity metric
chaoseverlasting
#2
Sep29-07, 12:56 PM
P: 1,017
Do you know the triangle law of vector addition? Use it. You have the angles, and the magnitudes...
CathyLou
#3
Sep29-07, 02:32 PM
P: 173
Quote Quote by chaoseverlasting View Post
Do you know the triangle law of vector addition? Use it. You have the angles, and the magnitudes...
Thanks for your help.

I'm not sure what the angles are from anticlockwise.

Cathy

learningphysics
#4
Sep29-07, 09:07 PM
HW Helper
P: 4,124
Resolving forces

divide the forces into horizontal and vertical components...

what is the horizontal component of P? what is the vertical component of P?


Register to reply

Related Discussions
Resolving forces Introductory Physics Homework 1
Resolving forces of a particles in equi... Introductory Physics Homework 4
Resolving Forces Introductory Physics Homework 8
Forces (possibly resolving..) Introductory Physics Homework 6
Mechanics - resolving forces for strings Introductory Physics Homework 0