🍹Early to RISA 🧉@sh.itjust.worksM to Greentext@sh.itjust.works · 1 day agoAnon misses a hintsh.itjust.worksimagemessage-square13fedilinkarrow-up1363arrow-down115
arrow-up1348arrow-down1imageAnon misses a hintsh.itjust.works🍹Early to RISA 🧉@sh.itjust.worksM to Greentext@sh.itjust.works · 1 day agomessage-square13fedilink
minus-squareLostXOR@fedia.iolinkfedilinkarrow-up48·1 day agoThe bullet weighs 10 grams and has a velocity of 330 m/s. It hits Anon in his 5 kg head and, because it’s a rubber bullet, bounces off elastically. How fast is Anon’s head moving after the collision?
minus-squareBeeDemocracy@sh.itjust.workslinkfedilinkarrow-up1·2 hours agoDepends, how stiff is his neck?
minus-squareLostXOR@fedia.iolinkfedilinkarrow-up32·1 day agoNot quite, remember it’s an elastic collision.
The bullet weighs 10 grams and has a velocity of 330 m/s. It hits Anon in his 5 kg head and, because it’s a rubber bullet, bounces off elastically. How fast is Anon’s head moving after the collision?
Depends, how stiff is his neck?
0.66 m/s ?
Not quite, remember it’s an elastic collision.
Ah, 1.317 m/s then.