Answer:
The force constant of the spring is 735 N/m.
Step-by-step explanation:
It is given that,
Mass of fruit, m = 1500 g = 1.5 kg
Compression in the scale, x = 0.02 m
We need to find the force constant of the spring on the scale. The force acting on the scale is given by using Hooke's law. So,

Also, F = mg

k is force constant

So, the force constant of the spring is 735 N/m.