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Thepotemich [5.8K]
3 years ago
5

Two forces with magnitudes of 200 and 100 pounds act on an object at angles of 60° and 170° respectively. Find the direction and

magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer.
Mathematics
1 answer:
ra1l [238]3 years ago
8 0

First force F1 =200 N

Second force,F2 =100 N

<span>θ1 =60°</span>

<span>θ2 =170°</span>

<span>Take Summation of Forces Horizontal and vertical

ΣFx = 200cos60° - 100cos(180-170°)</span>

      =200cos60° - 100cos(10°)

<span>      = 1.519 N
ΣFy = 200sin60° + 100sin(180-170°)</span>

      = 200sin60° + 100sin10°

<span>      = 190.57

Resultant/Magnitude
R =√[ (ΣFx)² + (ΣFy)²]</span>

<span>     =√[1.519²+(190.57)²]
R = 190.576 N</span>

<span>Direction of resultant force

θ =arctan [ΣFy / ΣFx]
θ =89.54°</span>

 

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