Torque and a Diving Board

  • #1
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Homework Statement



Calculate the torque (magnitude and direction) about the front support post (B) of a diving board , exerted by a 60 kg person 3.0 m from that post. See picture.

Homework Equations



τ = Fr

The Attempt at a Solution



τ clockwise = τ counterclockwise

(60 kg)(9.8 m/s^2)(4.0 m) = τ counterclockwise

I used "A" as the origin. Did I approach this incorrectly?
 
Last edited:

Answers and Replies

  • #2
cepheid
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They asked you to compute the torque around point B.

Also, you just need to compute the torque due to the person
 
  • #3
191
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Oh I see. By using 4.0 m I considered the torque around point A.

(60 kg)(9.8 m/s^2)(3.0 m) ≈ 1800 N * m
 
  • #4
cepheid
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Seems okay
 

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