A weight lifter lifted a load of 200 kgf to a height of 2.5 m in 5 s. Calculate :(i) the work done,and (ii)The power developed by him .Take g =10 N `kg^(-1)`

Explanation

To solve the problem, we will break it down into two parts: calculating the work done and then calculating the power developed by the weight lifter.

### Step 1: Convert the load from kgf to Newtons
The load given is 200 kgf. To convert this to Newtons, we use the relation:
\[ \text{Force (in Newtons)} = \text{Weight (in kgf)} \times g \]
where \( g = 10 \, \text{N/kg} \).
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