A ball held 2.0 meters above the floor has 59 joules of potential energy the bald mass is about

Mass of ball = 3.0102 Kg.

Explanation:

Potential energy at height h is given by

PE = mgh

where m is the mass of the body

g is the the acceleration due to gravity whose value is 9.8 m/s^2

h is the height from surface level

PE is potential energy

In the problem given h = 2 meters

PE = 59 joules

59 = m*9.8*2

=> m = 59/9.8*2 = 3.0102 Kg

Thus, mass of ball is 3.0102 Kg.