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9 Forces and their effects

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Question 10

A light ventilation flap is held stationary about a pivot. One actuator produces a clockwise moment of 5.4 N m, while another produces an anticlockwise moment of 2.1 N m. A spring provides the remaining anticlockwise moment by exerting a force with a perpendicular distance of 0.60 m from the pivot. What is the force exerted by the spring?

[1]
A

3.5 N3.5\ \mathrm{N}3.5 N

B

12.5 N12.5\ \mathrm{N}12.5 N

C

5.5 N5.5\ \mathrm{N}5.5 N

D

2.0 N2.0\ \mathrm{N}2.0 N

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9 Forces and their effects Questions

  1. GCSE
  2. /Physics
  3. /9 Forces and their effects

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