The answer is C: West to the East
Answer:
a

b
Explanation:
From the question we are told that
The velocity of the river due east is 
The velocity of the boat due north is 
The width of the river is 
Generally the velocity of the boat relative to the shore

=> 
=> 
Generally direction of the boat relative to the shore is mathematically represented as

=> ![\theta = tan^{-1}[ \frac{v}{v_1}]](https://tex.z-dn.net/?f=%5Ctheta%20%20%3D%20tan%5E%7B-1%7D%5B%20%5Cfrac%7Bv%7D%7Bv_1%7D%5D)
=> ![\theta = tan^{-1}[ \frac{1.5}{10}]](https://tex.z-dn.net/?f=%5Ctheta%20%20%3D%20tan%5E%7B-1%7D%5B%20%5Cfrac%7B1.5%7D%7B10%7D%5D)
=> 
Generally the distance covered by the boat in the direction of flow of the river before reaching the north shore is mathematically represented as

=> 
=>
The velocity of the brick is 39.2 m/s downward
Explanation:
The motion of the brick is a free fall motion, since the object is affected only by the force of gravity. Therefore, it has a uniformly accelerated motion towards the ground, with constant acceleration of
.
So, we can find its velocity using the suvat equation:

where
v is the final velocity
u is the initial velocity
a is the acceleration
t is the time
For the brick in this problem (taking downward as positive direction)
u = 0 (it is dropped from rest)

Therefore, its velocity after t = 4.0 s is:

Downward, because the sign is positive.
Learn more about free fall motion:
brainly.com/question/1748290
brainly.com/question/11042118
brainly.com/question/2455974
brainly.com/question/2607086
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The force is being pulled my the gravity or it could be a third party thing like a black hole you feel me