What variables need to be considered in slingshots?

  • Thread starter Wroen
  • Start date
  • #1
1
0
Say I have a basic slingshot (like an elastic band attached to a 'Y' shaped stick), what variables do I need to consider when calculating its ability to launch an object into the air?

So for example, say I load a mass, m, into a slingshot, pull the elastic band back x metres, and then release it, and the object flies off at an initial velocity of 'u' m/s. How can I determine if the slingshot can launch an object of a larger mass?

Do I need to know:
The mass of the initial object?
The 'spring constant' of the sling shot? (and if so, how do I find it?)
The projectile range of the initial object?

Is there more that I need to consider here?

(My little brother asked me if his homemade giant-slingshot could launch a human. I said that it probably wouldn't, but I'd like to work it out purely out of curiosity haha)

Thanks
 

Answers and Replies

  • #2
A.T.
Science Advisor
11,260
2,654
My little brother asked me if his homemade giant-slingshot could launch a human.
You have a little brother, a giant-slingshot ... physics is an experimental science. But seriously, use a sand bag with the mass of a human.
 

Related Threads on What variables need to be considered in slingshots?

  • Last Post
Replies
2
Views
1K
Replies
14
Views
3K
Replies
3
Views
8K
Replies
9
Views
2K
  • Last Post
Replies
3
Views
5K
Replies
32
Views
2K
Replies
3
Views
1K
Replies
20
Views
7K
Replies
2
Views
1K
Top