Answer:
h = 2.15 m
Step-by-step explanation:
We can use the third equation of motion here to find out the height from which the cat fell that is the height of the refrigerator.

where,
g = acceleration due to gravity = 9.81 m/s²
h = height of refrigerator = ?
vf = final speed of cat = 6.5 m/s
vi = initial speedof cat vertically = 0 m/s
Therefore,

h = 2.15 m