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A backpack has a mass of 8 kg. It is lifted and given 54.9 J of gravitational potential energy. How high is it lifted?

A backpack has a mass of 8 kg It is lifted and given 549 J of gravitational potential energy How high is it lifted class=

Respuesta :

TheMaster999
m=4kg
Eg=54,9J
g≈9,8m/s²

h=?

Eg=m*g*h
h=Eg/(m*g)=54,9J/(8kg*10m/s²)≈0,7m

answer: A




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