# Answer to Question #21030 in Mechanics | Relativity for Tory

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

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

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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