Answer:
The resultant velocity is 12.21 m/s.
Step-by-step explanation:
We are given that the water from a fire hose follows a path described by y equals 2.0 plus 0.9 x minus 0.10 x squared (units are in meters).
Also, v Subscript x is constant at 10.0 m/s.
The water from a fire hose follows a path described by the following equation below;
The velocity of the component is constant at =
and the point at which resultant velocity has to be calculated is (9.0,2.0).
Let the velocity of x and y component be represented as;
Now, differentiating the above equation with respect to t, we get;
Now, putting in the above equation;
= 7 m/s
Now, the resultant velocity is given by =
= = 12.21 m/s