Answer:
Work done, W = 39.2 J
Step-by-step explanation:
It is given that,
Mass of the block, m = 2 kg
The block is lifted vertically 2 m by the man i.e the distance covered by the block is, h = 2 m. The man is doing work against the gravity. It is given by :

Where
g is acceleration due to gravity

W = 39.2 J
So, the work done by the man is 39.2 J. Hence, this is the required solution.