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an object with a mass of 78 kilograms is lifted through a height of 6 meters. How much work is done?

A468J
B4586.4 J
C764.4 J
D47.75 J

Verified Answer :

olemakpadu

Work done = mgh

Where m = mass in kg,    g = gravity in m/s²,   h = height in m.  W is in J

m = 78 kg,   g = 9.8m/s²,   h = 6m 

W =    78 9.8 6 = 4586.4 J

(B)

Huntleighsmom

I agree with B. Just done the math

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