Forces in Equilibrium - Torque

In summary, the problem involves a painter weighing 875N standing on a plank supported by two stepladders. The plank weighs 223N and the man stands 1.0m from one end of the plank. The question is asking for the force exerted by each stepladder. To solve, one would need to use principles of torque and static equilibrium. It is helpful to draw a diagram and use the relevant chapters from a physics book. The provided answer is 694.8N and 403.2N.
  • #1
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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  • #2
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.
 
  • #3
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:

What is torque?

Torque is a measure of the force that causes an object to rotate around an axis. It is calculated by multiplying the force applied to an object by the distance from the axis of rotation.

What is the difference between a force and a torque?

A force is a push or pull on an object, while torque is a twisting force that causes an object to rotate. Forces can cause linear motion, while torques cause rotational motion.

How do you calculate torque?

Torque is calculated by multiplying the magnitude of the force applied to an object by the distance from the axis of rotation. The formula is T = F x r, where T is torque, F is force, and r is the distance from the axis of rotation.

What is the unit of measurement for torque?

The SI unit of measurement for torque is the Newton-meter (N*m). However, torque can also be measured in other units such as foot-pounds (ft*lb) or inch-pounds (in*lb).

How does the point of application of a force affect torque?

The point of application of a force affects torque by changing the distance from the axis of rotation. The further away the force is applied from the axis of rotation, the greater the torque will be. This is because the lever arm, or the distance from the axis of rotation to the point where the force is applied, is longer, resulting in a greater torque.

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