Two perpendicular forces of 6.0 N and 8.0 N act on an object at a point. What is the size of the resultant force?
Answer and explanation
Correct answer: D. 10 N
- Step 1: For perpendicular vectors use Pythagoras: . Step 2. N. Answer: 10 N. Why not the others: 14 N adds the magnitudes (parallel forces); 2 N subtracts them (opposite forces); 48 N multiplies them.
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