work done=m*g*h=53*9.81*7=3.63951 kJ where: m is mass (kg) g is acceleration due to gravity h is lift displacement
Five feet six inches !
it is about 46 inches
36 inches
48 inches
23.23 inches
64.57 inches
3.74 inches
332,500 inches
36 inches
5.5 Inches
About 6 inches