- #1
ghostinpants
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If you had two shoes, an ordinary shoe and an “antishoe” made of antiparticles, and you
annihilated them together, by how far could you lift the entire US population? Assume
that each person weighs 600 N, that each shoe’s rest mass is 0.5 kg and that all energy
goes into lifting.
I really have no idea how to solve this problem。 please help
My attempt:
total mass:0.5+0.5=1kg
According to the formula: E=MC*2
total energy:1x9x10*16=9x10*16J
total distance you can lift: 9x10*16J/1.8956x10*11 N (total mass of entire us population)
annihilated them together, by how far could you lift the entire US population? Assume
that each person weighs 600 N, that each shoe’s rest mass is 0.5 kg and that all energy
goes into lifting.
I really have no idea how to solve this problem。 please help
My attempt:
total mass:0.5+0.5=1kg
According to the formula: E=MC*2
total energy:1x9x10*16=9x10*16J
total distance you can lift: 9x10*16J/1.8956x10*11 N (total mass of entire us population)
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