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Force and Motion Vector Problems

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1. The resultant of two forces acting on a body has a magnitude of 80 pounds. The angles between the resultant and the forces are 20° and 52°. Find the magnitude of the larger force.
34.7 pounds
28.8 pounds
66.3 pounds
184.3 pounds

2. Without the wind, a plane would fly due east at a rate of 150 mph. The wind is blowing southeast at a rate of 50 mph. The wind is blowing at a 45° angle from due east. What is the actual speed of the plane with the wind?
188.7 mph
158.1 mph
150.0 mph
120.0 mph

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Two questions related to force and motion are solved.

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