Answer:
a.6533.333 N/m
b.Yes,the spring will be compressed more when the person hops down the road .
Explanation:
Mass of man=80 kg
Spring compressed by x=0.12 m
a.We have to find the force constant of the spring.
Spring constant=[tex]k=\frac{F}{x}=\frac{mg}{x}[/tex]
[tex]g=9.8m/s^2[/tex]
Using the formula
Spring constant,[tex]k=\frac{80\times 9.8}{0.12}[/tex]N/m
Spring constant=[tex]k=6533.33 N/s[/tex]
b.The spring will be compressed more when the person hops down the road because when the person hops down then the kinetic energy of person will be converted into potential energy during the road hit.