A body of mass 50kg runs or goes up a stair of 45 steps in 10 seconds. if the height of each step is 5cm calculate the work done.
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A body of mass 50kg runs or goes up a stair of 45 steps in 10 seconds. if the height of each step
A body of mass 50kg runs or goes up a stair of 45 steps in 10 seconds. if the height of each step is 5cm calculate the work done.
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The formula for work done is:
Work done = Force × Distance
In this case,
The force is the weight of the body :
= 50 kg × 9.81 m/s²
= 490.5 N.
The distance is the total height gained by the body :
= 45 steps × 0.05 m/step
= 2.25 m.
Plugging in the values, we get:
Work done = 490.5 N × 2.25 m
= 1103.625 J
Therefore,
The work done is 1103.625 J.