What is the gravitational potential energy of a # 5 kg# object on a shelf # 4/9 m # high?
1 Answer
May 19, 2016
Explanation:
Step 1
As physics calculations requires all values to be done in decimals, start by converting
#4/9mcolor(blue)(rArr)0.44m#
Step 2
To find the gravitational potential energy, we can use the formula:
#DeltaE_g#
#=E_"g,final"-E_"g,initial"#
#=mgh_f-mgh_i#
#=mg(h_f-h_i)#
Since
Substituting the values into the formula,
#=(5kg)(9.81m/s^2)(0.44m-0m)#
#=21.58J#
#~~color(green)(|bar(ul(color(white)(a/a)color(black)(2xx10J)color(white)(a/a)|)))#