Question
Download Solution PDFA body of mass 20 kg falls freely in vacuum. It has fallen through a vertical distance of 50 m. The gravitational acceleration may be assumed as 10 m/s2. What is the thermodynamic work done by the body?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Work done by a body depends on the medium in which the body is falling in.
- If a body is falling in vacuum there will be no resistance to the body hence there will be no work done. i.e. W = 0
- If a body is falling in atmosphere work done will be product of mass of the body (m) height the body is falling from (z) , gravitational acceleration(g) i.e. W = mgz
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