Answer to Question #21030 in Mechanics | Relativity for Tory

Mechanics | Relativity

Question #21030

Stan does 171 J of work lifting himself
0.4 m.
What is Stan’s mass? The acceleration of
gravity is 9.8 m/s2 .
Answer in units of kg

Expert's answer

The applied force is
F = A/S = 171/0.4 = 427.5 N
The mass is
m = F/g = 427.5/9.8 = 43.6 kg

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