🍹Early to RISA 🧉@sh.itjust.worksM to Greentext@sh.itjust.works · 2 months agoAnon misses a hintsh.itjust.worksimagemessage-square18fedilinkarrow-up1442arrow-down117
arrow-up1425arrow-down1imageAnon misses a hintsh.itjust.works🍹Early to RISA 🧉@sh.itjust.worksM to Greentext@sh.itjust.works · 2 months agomessage-square18fedilink
minus-squareLostXOR@fedia.iolinkfedilinkarrow-up54·2 months 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-squareLostXOR@fedia.iolinkfedilinkarrow-up35·2 months agoNot quite, remember it’s an elastic collision.
minus-squareBeeDemocracy@sh.itjust.workslinkfedilinkarrow-up5·2 months agoDepends, how stiff is his neck?
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?
0.66 m/s ?
Not quite, remember it’s an elastic collision.
Ah, 1.317 m/s then.
Depends, how stiff is his neck?