I agree with Steve's answer, but I don't understand why he initially used a plus sign in his cosine equation.
I did a similar question to yours about 5 years ago
http://www.jiskha.com/display.cgi?id=1303931140
Back to yours, if the resultant of two forces is less than either of the initial forces, then the forces MUST form an obtuse angle, thus none of your choices could be correct
However, did you notice that 180 - Steve's answer = 180 - 131.8 = 48.2 ???
Given that Force 1 = 70 pounds and Force 2 = 120 pounds , find the angle between the forces if the magnitude of the resultant force is 90 pounds . Round answer to the nearest
degree.
Hi steve, I asked this question earlier and you kindly helped me with it, giving me the answer 131.8°
The answers that I have as options are
a. 48°
b. 40°
c. 53°
d. 45°
e. 60°
I have used the workings you showed me to try to figure out which one it is, but am really struggling. Can you help me please?
1 answer