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9 Forces and their effects

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Question 24
F

Three children, X, Y and Z, play on a seesaw. The seesaw is pivoted at its centre.

Child X has a weight of 300 N and sits 2.0 m to the left of the pivot.

Child Y has a weight of 200 N and sits 1.0 m to the left of the pivot.

Child Z has a weight of 400 N and sits to the right of the pivot.

The seesaw is balanced and horizontal.

a.

Calculate the total anticlockwise moment about the pivot.

[3]
b.

Calculate the distance between child Z and the pivot.

[2]
c.

Child Y moves to sit directly above the pivot. Child X and child Z do not move.

Explain what happens to the seesaw.

[2]
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9 Forces and their effects Questions

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

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