Briefly explain how you could design a ruler to measure the force a spring exerts

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.

um if your asking how to beat a level then that i can with that and how to fix your wii but other than that i can't u

98.4 m

explanation:

let s = distance up the plane  

then by conservation of energy  

1/2m(18.3)^2 = mg s sin(10)  

(18.3)^2 = 2g s sin(10)  

s = (18.3)^2/2gsin(10)  

= 98.39564526  

= 98.4 m