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katherinekc
 3 years ago
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 these forces. Round to two decimal places in all intermediate steps and in your final answer.
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katherinekc
 3 years ago
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 these forces. Round to two decimal places in all intermediate steps and in your final answer. show work

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youarestupid
 3 years ago
Best ResponseYou've already chosen the best response.0write something down if YOU want a medal

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1i just need help on the problem please!

youarestupid
 3 years ago
Best ResponseYou've already chosen the best response.0plus I am sorry but I do not know the answer

Tushara
 3 years ago
Best ResponseYou've already chosen the best response.1calculate the vertical and horizontal components of each force, and then all the vertical forces together, then add horizontal forces together... after that u can combine the vertical and horizontal vector using pythagaros theorem to get the resulting force

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1im not sure how to do all that .. im horrible in math and im just trying to pass so i can be done:(

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1I know i have to resolve each vector into horizontal and vertical components using sin and cos but im not sure how to actually begin

geerky42
 3 years ago
Best ResponseYou've already chosen the best response.1Always try to sketch. It may help you.dw:1359302063400:dw

geerky42
 3 years ago
Best ResponseYou've already chosen the best response.1Just do what @Tushara told you to do.

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1i just dont know where or how to really do it :/

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4dw:1359302350812:dw

geerky42
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1359302341604:dw\[\Large \sin \theta = \dfrac{y}{r} \Rightarrow r \sin \theta = y\]\[\Large \cos \theta = \dfrac{x}{r} \Rightarrow r \cos \theta = x\]

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1but how would i put this all into writing to show my work? like in step form?

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4dw:1359302475063:dw

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1i began with this.. is this a good start; f1x= 200cos(60) f1x= 100 cos (170) rx= 200 cos(60) + 100 cos(170)

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4F1 = 200, F2 = 100 F1x = F1 cos 60 F1y = F1 sin 60 F2x = f2 cos 170 F2x =F2 sin 170 Rx = F1x + F2x Ry = F1y + F2y R(theta) = tan^1(Ry/Rx)

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4On the second line, you mean f2x, but that's good.

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1but now where do i go ?

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4Now do the same for the force components in the y direction.

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4Do this: f1x= 200cos(60) f2x= 100 cos (170) rx= 200 cos(60) + 100 cos(170) For F1y, F2y, and Ry

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4F1y = F1 sin 170 F2y = ... Ry = F1y + F2y = ...

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1f1y = 100 sin (170) f2y = 200 sin ( ) ?? hmm

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4F1 = 200, F2 = 100. You switched them.

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1f1 = 200 sin (170) f2 = 100 sin (60) ??

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1okay the it would be ..

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4You got the xcomponents above and you did it correctly. Now you need the ycomponents. f1y = 200 sin (60) f2y = 100 sin (170) Ry = f1y + f2y = 200 sin 60 + 100 sin 170

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1ok i got the 70 and 170 mixed around

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4Remember the first force, F1, is 200 lb at 60 deg The x component is F1x = 200 cos 60 The y component is F1y = 200 sin 60 The second force, F2, is 100 lb at 170 deg The x component is F2x = 100 cos 170 The y component is F2y = 100 sin 170 The resultant's xcomponent is Rx = F1x + F2x = 200 cos 60 + 100 cos 170 The resultant's ycomponent is Ry = F1y + F2y = 200 sin 60 + 100 sin 170

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4Now you need to do the actual calculations with a calculator of what Rx and Ry are, and round off to 2 decimal places.

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1so all i have to do is put the equation in the calculator for rx and ry and thatll give me the answers?

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1i need to complete the problem?

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4For now, yes. That will give you the x and ycomponents of the resultant.

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1okay .. and thats all i do then right

katherinekc
 3 years ago
Best ResponseYou've already chosen the best response.1but i have to find the direction and magnitude?

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4Once you have the x and ycomponents of the resultant, you need two more steps. 1. You need to find the magnitude of the resultant. 2. You need to find the direction of the resultant.

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.4For the magnitude of the resultant, you use the Pythagoras theorem. For the direction of the resultant, you use the inverse tangent to get the angle. See figure below: dw:1359304507660:dw
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