The spring constant is 1045.3 N/m.
Given data:
The vertical distance traveled is h=2 m.
The compression in the spring is x=1.5 m.
The mass of Rosario is m=60 kg.
The formula for the elastic potential energy stored in the spring is givne by,
Here, k is the spring constant.
The formula for the gravitational potential energy gained by the person is given by,
Here, g is the gravitational acceleration.
Applying the conservation of energy.
As the total of spring remains constant; therefore, the amount of gain in gravitational potential energy will be equal to the elastic potential energy of the spring. It can be applied as,
Thus, the spring constant is 1045.3 N/m.