Thursday

September 18, 2014

September 18, 2014

Posted by **Sarah** on Monday, June 8, 2009 at 1:25pm.

- Physics -
**bobpursley**, Monday, June 8, 2009 at 1:33pmYou have a SAS triangle problem. You need the third side, and an angle.

Draw this out in a head to tail vector on vector.

one vector 270 at zero degrees (dogA). Next, starting at the end of that vector, a 300N at 60 deg upward (the angle then in the triangle is 120 deg).

First, the length of the other side:

Law of cosines..

R^2=a^2+b^2 -2abcos120

you know a, b find R

Then the angle between the dogA and the resultant.

SinAngle/opposite side=Sin120/R

where the opposite side in this triangle is 300

solve for the angle.

**Answer this Question**

**Related Questions**

PHYSICS - Two dogs pull horizontally on ropes attached to a post; the angle ...

Physics - Two dogs pull horizontally on ropes attached to a post; the angle ...

Physics - two dogs pull horizontally on ropes attached to a post; the angle ...

Physics - two dogs pull horizontally on ropes attached to a post; the angle ...

Physics - Two dogs pull horizontally on ropes attached to a post; the angle ...

physics - Two dogs pull horizontally on ropes attached to a post; the angle ...

physics - two ropes are attached to a 200. kg sled. A 490. newton dog attached ...

Physical Science - two people pull on separate ropes attached to a cart. the ...

Physics - two students are attempting to lift a sign to the top of a tall ...

physics - two boys trying to move a 200 kg cement block pull on two ropes ...