How well will my couch be rumbled?

  • Thread starter Thread starter Loading17
  • Start date Start date
AI Thread Summary
A device weighing 2.5 pounds that exerts a force of 10 pounds will only indent the couch by 2.5 pounds, regardless of the force it can theoretically produce. The couch, weighing around 200 pounds, will not experience significant indentation from this device. When comparing the impact of a 2.5-pound ball thrown at the couch, it is suggested that the ball would need to have zero speed to achieve the same indentation effect, as resting it on the couch would suffice. The discussion emphasizes that the mass and force exerted do not change the indentation outcome on the couch. Overall, the force applied by the device is limited by its own weight.
Loading17
Messages
1
Reaction score
0
I have this thing, given about 25 watts, it'll provide a force of 10 Lbf (44.5 N) This thing has a mass of ~2.5 pounds. I'll mount it to a couch with a mass of about 200 pounds (with a person on it)

What'll happen?

If I had a ball that was the same mass, and threw it at the couch, how fast would the ball be traveling to produce the same force?

Thanks.

If you need any more info just ask.
 
Physics news on Phys.org
A device which has a mass of 2.5 pounds and produces a force of 10 lbs can only indent the couch with the force of 2.5 pounds. If the device had the same mass and produced a force of 1 million pounds, the couch would still be indented by 2.5 pounds.
Think of a hydraulic jack with it's rear end resting on the couch.

How fast should the 2.5 lb ball thrown at the couch be traveling to achieve the same indentation effect? Zero speed. Just rest it on the couch.
 

Thread 'Why can't Solar panels be hemispherical, or a curved strip type?'

comparing a flat solar panel of area 2π r² and a hemisphere of the same area, the hemispherical solar panel would only occupy the area π r² of while the flat panel would occupy an entire 2π r² of land. wouldn't the hemispherical version have the same area of panel exposed to the sun, occupy less land space and can therefore increase the number of panels one land can have fitted? this would increase the power output proportionally as well. when I searched it up I wasn't satisfied with...
View full post »

Similar threads

I need help, please, designing a pool sensor for breaking . . .
Replies
2
Views
84
B How Does Blackbird Leverage Wind Power to Move Faster Than the Wind?
2
Replies
69
Views
15K
B Questions about momentum and force as well as normal force/friction
Replies
35
Views
3K
How is net torque zero about hinge of rod in ball rod system
Replies
7
Views
3K
Force & Physics of Lifting/Moving Objects in Pathfinder
Replies
14
Views
3K
I How weather conditions affect a golf shot
Replies
6
Views
3K
Can a gyroscope lift a fulcrum (and itself), hinged to the floor?
Replies
8
Views
3K
How fast is ball thrown up to come down in 2 seconds
Replies
10
Views
5K
Momentum, Inertia, and Deflection
Replies
2
Views
3K
How Is Average Force Calculated in a Football Collision?
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top