1-Find the magnitude of the resultant force and the angle it makes with the posi

Question

1-Find the magnitude of the resultant force and the angle it makes with the positive x-axis. (Let a =200 N and b =400 N. Round your answers to one decimal place.)

a 60 above positive x-axis , b on the line of negative x-axis

magnitude= N ?

angle= ?

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2-Let P be a point not on the line L that passes through the points Q and R. The distance d from the point P to the line L is

where a=QR and b=QP
Use the above formula to find the distance from the point to the given line.

d =

Explanation / Answer

Fx = 200cos 60-400= -300 N

Fy = 200 sin 60=173.2 N

magnitude= 346.40

angle=150.0 degree

2

let t=0

Q= 1,3,4

let t=1

R=2,0,2

a= (1,-3,-2)

b= (4,0,-6)

so d= 4.225

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