Washboard Road:
An 800 kg car carrying four 50 kg passengers
travels a ``washboard road'' with bumps 2 m apart.
The worst ``bumpiness'' occurs at a speed of
10 m/s.
1.
What is the resonant frequency
of the loaded car on its spring suspension?
2.
The car now stops and the 4 people get out.
How far does the car rise on its springs?
(Assume that all the springs are identical and are evenly loaded.)
...and
Tipler Ch. 14:
(4
Edition) problems
93, 102, 105, 110, 119 and 125