A. Solid
Solid structures are actually made of repeating patterns.
If I'm understanding the picture, it looks like the riders add up to <em>117.8</em> .
Of approximately 1 to 4 kHz6 and approximately 16 kHz for mice.
The dummy's acceleration is 11 m/s^2
(also known as 11 meters per sec. per sec.)
a = F/m
= 825 N/75 kg
= 11 m/s^2
