Answer:
Distance, x = 0.19 meters
Step-by-step explanation:
It is given that,
Spring constant of the toy rocket, k = 13 N/m
Force applied on the spring, F = 2.5 N
We have to find the spring constant of the spring. It can be calculated using Hooke's law as :
F = - kx


x = 0.19 meters
Hence, the spring must be compress to cause it to exert a force of 2.5 N.