Solve the problem.A force of 90 lb acts on an object at an angle of 55°. A second force of 100 lb acts on the object at an angle of -60°. Find the direction and magnitude of the resultant force.
A. 
? 1.43 lb, ? = -2°
B. 
? 102.43 lb, ? ? -7.2°
C. 
= 98.92 lb, ? = -4.2°
D. 
= 101.47 lb, ? ? 7.2°
Answer: B
Mathematics
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