What Forces Do Stepladders Exert on a Plank Supporting a Painter?

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SUMMARY

The discussion centers on calculating the forces exerted by stepladders supporting a plank with a painter standing on it. The painter weighs 875N, and the plank weighs 223N, with the painter positioned 1.0m from one end of the 3.0m plank. The forces exerted by the stepladders are calculated as 694.8N and 403.2N. Participants emphasize the importance of understanding torque and static equilibrium to solve the problem effectively.

PREREQUISITES
  • Understanding of static equilibrium principles
  • Knowledge of torque calculations
  • Familiarity with free body diagrams
  • Basic physics concepts related to forces and moments
NEXT STEPS
  • Study static equilibrium and its applications in physics
  • Learn how to calculate torque in various scenarios
  • Practice drawing and analyzing free body diagrams
  • Review examples of force distribution in support structures
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the mechanics of forces acting on structures in static equilibrium.

Equilibrium
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A painter weighing 875N stands on a plank 3.0m long, which is supported
at each end by a stepladder. The plank weighs 223N. If the man stands 1.0m from one end of the plank, what force is exerted by each stepladder?

ANSWER: 694.8N ; 403.2N -> (ans provided by my hand-outs)

Q
1. how to solve?
2. does dis have a pivot point pls help...

Thank you very much 4 helping...
 
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Please show what you've tried. That's the rule you've agreed to when you registered to physicsforums.

If you have no idea what to do, I stongly suggest reading the relevant chapters from your physics book.

Start by drawing a diagram.
 
cant really understand...
the only example the teacher gave 2 me was..
the seesaw thingy & the equilibrium
can u gve me a hint plss...

does dis have to do about torque or static equilibrium...
 
Last edited:

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