Answer:
Explanation:
Refraction occurs when a ray of light passes from a medium into another medium. In this situation, the ray of light bends and changes speed, according to Snell's Law:
where
is the index of refraction of the 1st medium
is the index of refraction of the 2nd medium
is the angle of incidence (the angle between the incident ray and the normal to the boundary)
is the angle of refraction (the angle between the refracted ray and the normal to the boundary)
In this problem, we have:
is the index of refraction of air
is the index of refraction of water
is the angle of incidence in air
Solving for , we find the angle of refraction in water:
To solve this problem we will apply the linear motion kinematic equations.
The equation that describes the position as a function of the initial velocity, acceleration and time is given by the relation
Here,
Initial velocity
t = Time
a = Acceleration, at this case due to gravity
There is not initial velocity then we have that the equation to the given time is
If the ball is held at a height of 1m before it is dropped, we have that the Building height is
It will decrease because she is loosing momentum and she will begin to slow down.
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