Answer:
0.7 m
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,
[tex]p.e = m \times g \times h \\ or \: 54.9 = 8 \times 9.8 \times h \\ or \: 54.9 = 78.4 \times h \\ or \: h = \frac{54 .9}{78.4} \\ h = 0.7 \: m[/tex]
Hope this helps...
Good luck on your assignment..
