A particle, which remains at rest, is acted on by three forces, P, Q and R, and no others, as shown in the diagram attached. The force P acts horizontally to the left, the force Q acts vertically upwards and the force R acts downwards and to the right at an angle of 30◦ to the horizontal. The magnitude of P is 52 N. Let the magnitudes of Q and R in newtons be Q and R respectively. Take the Cartesian unit vectors i and j to be in the opposite direction to P and in the same direction as Q, respectively. a) Find expressions for the component forms of the three forces P, Q and R. b) Hence or otherwise find Q to two significant figures.
A particle, which remains at rest, is acted on by three forces, P, Q and R, and no others, as shown in the diagram attached. The force P acts horizontally to the left, the force Q acts vertically upwards and the force R acts downwards and to the right at an angle of 30◦ to the horizontal. The magnitude of P is 52 N. Let the magnitudes of Q and R in newtons be Q and R respectively. Take the Cartesian unit vectors i and j to be in the opposite direction to P and in the same direction as Q, respectively. a) Find expressions for the component forms of the three forces P, Q and R. b) Hence or otherwise find Q to two significant figures.
College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A particle, which remains at rest, is acted on by three forces, P, Q and R, and no others, as shown in the diagram attached.
The force P acts horizontally to the left, the force Q acts vertically upwards and the force R acts downwards and to the right at an angle of 30◦ to the horizontal. The magnitude of P is 52 N. Let the magnitudes of Q and R in newtons be Q and R respectively.
Take the Cartesian unit vectors i and j to be in the opposite direction to P and in the same direction as Q, respectively.
a) Find expressions for the component forms of the three forces P, Q and R.
b) Hence or otherwise find Q to two significant figures.
Transcribed Image Text:j
P
30°
R
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