fmc0145
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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? A. 468J B. 4586.4 J C. 764.4 J D. 47.75 J

Respuesta :

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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