a-person-standing-on-the-bridge-notices-that-the-bridge-starts-to-vibrate-with-a

Question

A person standing on the bridge notices that the bridge starts to vibrate with a frequency of 3.5 Hz when a large truck passes by. If the mass of the bridge is 5000 kg, what is the effective spring constant of the bridge?

Accepted Answer

2.42 × $$10 ^{6} N/m$$

Answer

1.09 × $$10 ^{3} N/m$$

Answer

1.09 × $$10 ^{6} N/m$$

Answer

2.42 × $$10 ^{3} N/m$$