Question

A car hit a speedbump and bounces at a frequency of 3 Hz. If the car has a mass of 600 kg, then how strong is the spring in the car’s suspension?

Answer 1

2.13 x 10^5 N/m

Explanation:

Use two formulas, T=1/f and T=2π
`\sqrt{(m)/(k) }`

T=1/3

Plug in Time and mass into this formula

T=2π
`\sqrt{(m)/(k) }`

1/3=2
`\sqrt{(600)/(k) }`

K= 2.13 x 10^5 N/m