Sunday

December 21, 2014

December 21, 2014

Posted by **tumcee** on Saturday, April 17, 2010 at 2:28pm.

What is the magnitude?

What is the direction ° (counterclockwise from the +x-axis)?

- college physics -
**drwls**, Saturday, April 17, 2010 at 4:14pmOK, I found the figure at

http://www.webassign.net/wb/3-30.gif

All you have to do is use a little trig and add up the vertical and horizontal displacements.

Four vectors are being added. In the +y direction, the change in position is

Y = 20 sin 30 + 30 - 20 sin 45

= 25.86 m

You do the +x displacement, which is

X = 20 cos30 -40 + 20 cos 45, which is a negative number.

Use the Pythagorean theorem for the magnitude of the displacement.

The direction angle is in the second quadrant and the tangent of the angle from the +X axis is Y/X

- college physics -
**Wow**, Monday, October 27, 2014 at 7:42pm27m at 72 degrees

**Answer this Question**

**Related Questions**

college physics - A person walks from point A to point B as shown in the figure ...

physics - A person walks 10 m in the + direction, 32 m in the - direction. What ...

Math: Compass Bearings - two people start walking from the same point. Person A ...

physics - Person A walks 6.0 m at an angle of 30 north of east. Person B walks 7...

physics - As shown in the figure below, a green bead of mass 50 g slides along a...

Physics - You meet a person with prescription glasses of +0.55 dpt. What is the...

physics - A person walks 27m east and then walks 31m at an angle 38° north of ...

Help please!! - Read the sentence below. Harry didn't know that his actions ...

physics - A jet starts of at a point A and is flying horizontally. And person is...

Physics - You meet a person with prescription glasses of +1.74 dpt. What is the ...