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9 Forces and their effects

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Question 29

A uniform lighting rail is 1.20 m long and weighs 24 N. It rests on a single support 0.45 m from its left-hand end.

An installer attaches an 8.0 N lamp to the rail. The rail must remain horizontal after the lamp is attached.

Where must the lamp be attached?

[1]
A

0.05 m0.05\ \mathrm{m}0.05 m to the left of the support

B

0.45 m0.45\ \mathrm{m}0.45 m to the left of the support

C

0.45 m0.45\ \mathrm{m}0.45 m to the right of the support

D

0.15 m0.15\ \mathrm{m}0.15 m to the left of the support

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9 Forces and their effects Questions

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

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