Lesson: Chapter 9 — Resultant Force

9.3. The resultant of two parallel forces 6 of 8 Reset answers

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Question 6

Two strong threads tied to a trolley are held parallel to each other and pulled, one with 8 N and the other with 16 N. What is the resultant of these two forces?

A 16 N B 128 N C 24 N D 8 N

The right answer is the one marked above.

24 N. The threads are parallel and both forces act the same way, so 8 N + 16 N = 24 N.

128 N is the two forces multiplied — forces are never multiplied. 8 N or 16 N is only one of the forces.

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