Dia 0.800 mVolume 0.268 m3Berat jenis batu 2.200 t/m3Berat batu 1.760 t/m3

Gaya tahanan batu (Fm) F = m*g

dimana :

m = massa batu= 1.800 t/m3

= 0.268 m3m = 0.483 tg = percepatan gravitasi = 9.8

Fm = 4.73 t m/det2= 4.73 Newton

Gaya tumbukan air (Fg) F = m*a --> percepatan air di terminal channel = 0

dimana

m = massa air= 1.000 t/m3

= 0.503 m3 0.50 m = 0.503 tv = kecepatan air = 2.23

Fg = 1.121 t m/det2= 1.121 Newton

Fm/Fg 4.219

gbatu

Volbatu

gair

Volair

m/det2

--> percepatan air di terminal channel = 0

m/det2