Final answer:
The potential energy possessed by the man holding a 5kg bag at a height of 20cm is 10J.
Step-by-step explanation:
To calculate the potential energy possessed by a man holding a bag of 5kg at a height of 20cm, we can use the formula for gravitational potential energy. Gravitational potential energy (P.E.) is calculated using the formula P.E. = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height. In this case, the mass is 5kg, the height is 20cm (or 0.2m), and the acceleration due to gravity is 10m/s².
Using the formula, we have P.E. = (5kg) * (10m/s²) * (0.2m) = 10J.