# Physics

posted by .

Find analytically the resultant of the forces shown below:

Where: F1 = 20 kg (4,4)
F2 = 15 kg (-5,5)
F3 = 5 kg (-2,-2)
F4 = 10 kg (3,-3)

• Physics -

Fr = F1 + F2 + F3 + F4.
Fr = 20[45o] + 15[135o] + 5[[225o] + 10[315o]
Fr = 14.14+14.14i + 10.61-10.61i -3.54-3.54i
+7.07-7.07i,
Fr = 28.28 - 7.08i = 29.16kg[-14.1o] = 29.16kg[14.1o] S. of E.

## Similar Questions

1. ### College Physics

When I graphically find a vector sum and then analytically solve for the resultant, I am getting two completely different answers. Why might this be?
2. ### physics

Two forces acting on a body in opposite directions,have the resultant velocities of 10newton. if they act at right angles to each other, the resultant is 50 newton.find the two forces.
3. ### Physics

Two forces, 364 N at 19° and 253 N at 32° are applied to a car in an effort to accelerate it. The resultant forces of these two forces is 558.72 N. What is the direction of the resultant force (in relation to forward, with counterclockwise …
4. ### Physics

Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5050 N, F2 = 1450 N, F3 = 950 N, and F4 = 4200 N. ______N at ______ ° clockwise …
5. ### Physics

Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5050 N, F2 = 1450 N, F3 = 950 N, and F4 = 4200 N. _______ N at ________ ° …
6. ### Physics

Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5050 N, F2 = 1450 N, F3 = 950 N, and F4 = 4200 N. ________° clockwise from …
7. ### Physics

Two boys are pulling a box across a horizontal floor as shown in the figure below. vector F 1 = 50.0 N and vector F 2 = 100 N. (a) Find the resultant (or sum) force by the graphical method. (b) Find the resultant (or sum) force by …
8. ### physics

Two forces of resultant 100N are prependicular to each other. If one of them makes angle 60degree with the resultant, calculate the magnitude of the forces. (Sin60degree=0.87, cos60degree=0.5)
9. ### Physics

The resultant of two forces is 50N. If the forces are perpendicular to each other and one of them makes an angle of 300 with the resultant, find its magnitude
10. ### physics

to forces are applied to a car in an effort b to move it ,as shown in figure .a) what is the resultant of these two forces ?

More Similar Questions