Does Wrapping a Whip More Times Increase Its Ability to Support Weight?

AI Thread Summary
Wrapping a whip around a tree branch increases its ability to support weight due to the increased friction force generated by the tension in the whip. The friction force is calculated as the normal reaction multiplied by the coefficient of friction, where the normal reaction is influenced by the number of turns and the tension in the whip. More turns result in greater friction, enhancing the whip's load-bearing capacity. However, surface area also plays a role and should be considered in the analysis. Understanding these dynamics is crucial for solving the physics project effectively.
cellogirl3
Messages
1
Reaction score
0
Currently I'm doing a physics project based on Indiana Jones. I was curious if the whip, when wrapped around a tree branch, can support a human weight. However I realize, depending on how many times the whip was wrapped around the branch, the friction force will increase. Yet based on the friction force, surface area is not taken into account and in this example, it should be considered. So how should I solve this?
Thanks
 
Physics news on Phys.org
Hello Cellogirl! Welcome to PF!

in this case, there will be a tension throughout the whip. in ideal case the tension will be uniform. so friction force = Normal reaction x coefficient of friction.

here Normal reaction = no. of turns x tension in whip

so more turns implies more friction.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

B Why does ice have more friction when it's solid compared to when it's melting?
Replies
11
Views
2K
How does air resistance change with weight and surface area?
Replies
27
Views
6K
B Why does friction decrease with repeated force application?
Replies
11
Views
2K
How Can Weight, Surface Area, and Speed Affect Friction?
Replies
1
Views
7K
How weight affects surface bending over time
Replies
10
Views
2K
Lose weight (mass) or train? - effect of losing weight (mass) on power
Replies
1
Views
5K
How does gravity affect the human body in different positions?
Replies
4
Views
4K
Surface roughness in 2D sinusoidal corrugation
Replies
1
Views
4K
How Much Force Does a Gunshot Exert in Movie Scenes?
Replies
3
Views
2K
What types of equations are more general than IVPs?
Replies
5
Views
2K

Hot Threads

Recent Insights

Back
Top