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? Accelerat
ion due to gravity is g = 9.8 m/s^2. A) 3.2 m B) 0.15 m C) 6.9 m D) 0.7 m
1 answer:
Answer:
<h2>
0.7 m</h2>
Option D is the correct option.
solution,
Potential Energy(PE)=54.9 J
Mass(m)=8 kg
Acceleration due to gravity (g)=9.8 m/s^2
Height (h)=?
Now,
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