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A person of mass 50 kg carrying a load of 20 kg walks up a staircase. The width and height of each step are 0.25 m and 0.2 m respectively. What is the work done by the man in walking 20 steps?(Assume g = 10m/s2)

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Variable force is the force whose direction and amplitude vary during the body's motion and is not constant. Examples are spring force, magnetic force, electrostatic force, etc.


A person of mass 50 kg carrying a load of 20 kg walks up a staircase. The width and height of each step are 0.25 m and 0.2 m respectively. What is the work done by the man in walking 20 steps?(Assume g = 10m/s<sup>2</sup>)






 
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