Ch. 7710 Test a to 6 An object is acted upon by pound force at 900...

Question

Question

Ch. 7710 Test a to 6 An object is acted upon by pound force at 900 and a 20 pound force at 30° Find the magnitude and directi

math trigonometry

Answer 1

Answer #1

Let

F 1= 10 pound

F 2 = 20 pound

Angle between the two = 60 degrees

Resultant = sqrt ( 10*10 + 20*20 - 2*10*20 Cos 60)

=sqrt (300 ) pound = 17.32 pound

And Direction is theta = arctan(20/10)

Therefore theta = 63.43 degrees.

Answer 2

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