Question 1190542
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k = some constant
W = work required to lift the object
M = mass
H = height of the object


The second sentence gives this info:
W = 2116.8 joules
M = 120 kg
H = 1.8 m


Use that info to determine k
W = k*M*H
2116.8 = k*120*1.8
2116.8 = k*216
216k = 2116.8
k = (2116.8)/(216)
k = 9.8


Then we can determine W if M = 100 kg and H = 1.2 m


W = k*M*H
W = 9.8*M*H
W = 9.8*100*1.2
W = 1176


Answer: 1176 joules
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