Question

A circus car with a clown has a total mass of 150 kg. It is coasting at 6.0 m/, when it hits a large spring head on. If it is brought to a stop the time the spring is compressed 2.0 m, what is the force constant of spring?

Answer 1

kinetic Energy of car will be stored as P.E of Spring

\[\frac{ 1 }{ 2 }mv^2 = \frac{ 1 }{ 2 }kx^2\]

\[150*6*6 = k*2*2\]

\[k=1350N/m\]

Answer 2

thanks a lot

Answer 3

Welcome..)