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anonymous
 one year ago
PLEASE HELP ME I AM SO LOST I HAVE NO IDEA HOW TO APPLY THIS OR WHERE TO START:
Two forces with magnitudes of 150 and 75 pounds act on an object at angles of 30° and 150° respectively. Find the direction and magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer.
So i started off trying to find the resultant vector by adding these:
150cos(30)x +150sin(30)y
75cos(150)x + 75sin(150)y
anonymous
 one year ago
PLEASE HELP ME I AM SO LOST I HAVE NO IDEA HOW TO APPLY THIS OR WHERE TO START: Two forces with magnitudes of 150 and 75 pounds act on an object at angles of 30° and 150° respectively. Find the direction and magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer. So i started off trying to find the resultant vector by adding these: 150cos(30)x +150sin(30)y 75cos(150)x + 75sin(150)y

This Question is Closed

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438981308566:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438981420279:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1resolve horizontally F1 = 150 cos 30  75 cos 30 resolve vertically F2 = 150 sin 30 + 75 sin 30

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438981651618:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you now have to find the resultant of F1 and F2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1what do you get for F1 and F2?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1yoy can find this resultant using pythagoras dw:1438982214222:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1R is the magnitude of the resultant force and x = arctan (F2/F1) is the direction

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1gotta go Hope this has helped

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438995269233:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0F1 = <150 cos 30, 150 sin 30> F2= <75 cos 150 , 75 sin 150> Resultant = F1 + F2 = < 150 cos 30 + 75 cos 150 , 150 sin 30 + 75 sin 150> = <64.95, 112.5> Magnitude of resultant = √( 64.95^2 + 112.5^2) = 129.9 Angle = arctan (112.5 / 64.95) ~ 60.0 degrees
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