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#1 2007-10-10 05:18:06
- Daniel123
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- Registered: 2007-05-23
- Posts: 663
Resolving forces
Can someone do this... and tell me what answer they get? I disagree with my 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. By drawing a polygon of forces, find the magnitude of their resultant and the angle it makes with Ox, when:
P = 2N, p = 0°
Q = 3N, q = 40°
R = 4N, r = 100°
S = 5N, s = 150°
Thanks 
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#2 2007-10-10 06:06:02
- Daniel123
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- Registered: 2007-05-23
- Posts: 663
Re: Resolving forces
oops. i made a mistake.
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#3 2007-10-10 06:08:42
- Dross
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- Registered: 2006-08-24
- Posts: 325
Re: Resolving forces
I get a magnitude of 8.4N at an angle of 94.97 degrees.
Bad speling makes me [sic]
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#4 2007-10-10 06:17:20
- JaneFairfax
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- Registered: 2007-02-23
- Posts: 6,868
Re: Resolving forces
So the resultant is a force of 8.4 N at 95°.
Last edited by JaneFairfax (2007-10-10 06:22:22)
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