The speed of a tsunami s (in meters/second) is approximated by s=sqrt of gd, where g is the acceleration due to gravity 9.8 m/s^2 and d is the depth of the water (in meters). If the speed of a tsunami is 200 m/s, about how deep is the water?

Question

muzzack · Answer

jst need explanation not answer

perl · Answer

Basically this problem is what's known as 'plug and chug' . Plug in whats given into the equation given, and solve for the unknown.

muzzack · Answer

The speed of a tsunami s (in meters/second) is approximated by s=$sqrt{gd}$ , where g is the acceleration due to gravity 9.8 $ m/s^2$ and d is the depth of the water (in meters). If the speed of a tsunami is 200 m/s, about how deep is the water?

perl · Answer

the equation is :
 s=sqrt(gd) 

the speed is given as 200 m/s
we know from physics that g is about 9.81 m/s^2

200 = sqrt( 9.81* d ) 

solve for d the unknown

muzzack · Answer

$$\sqrt{gd}$$

muzzack · Answer

so $$200=(\sqrt{9.8}*d)$$ = so you do the inverse of you graph the function to know what d is ? @perl

muzzack · Answer

or*

muzzack · Answer

@ganeshie8 ?