r/Physics•
NepNep_

Need help figuring out an impact force equasion

I am a total N00b at physics lol. I am trying to figure out how much jouls of energy was needed in order to create an impact crater of a certain size from something thrown at the ground. In short in a certain cartoon a character took a small doll and threw it at the ground and created a impact crater around twice the size of the character (image of this is below)

https://twitter.com/Rkraiem100/status/886701076908580865

I have the necessary numbers but I have no idea what formula i need to figure it out lol...

Character Height: 148cm

Doll Height: 54cm

Doll Width: 18cm

Hole Depth: 74cm

Hole Radius: 216cm

Time Over Distance or whatever: started at height 148cm, ended at 0 in around .1 seconds

Density of material: 1.56 g/cm³

thanks in advance

Posted Jul 16, 2017, 9:41 PM UTC

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