I think thirst or dark colored urine. :)
Answer:
B) Lengths will appear shorter and time will appear to pass faster.
Explanation:
This is in line with the laws of relativity.
Answer:
x = 8.74m
Explanation:
Hello! Let's solve this!
Given a mass m = 0.44kg
v = 4m / s
F = 8N
y = 20m
Force on the rocket
F '= F * - (mg) = m * a
We cleared to
a = (F * (- mg)) / m = (F / m) * (- g)
The rocket will accelerate upwards at a time t given by x = v * t
We cleared t
t = x / v
From kinematics we have to
y = (1/2) * a * t2
We replace a and t
y = (1/2) * (F / m) * (- g) * (x / v) 2
We clear x that is the incognita.
![x=\sqrt{(2*y*v^{2} )/(F/m)-g}](https://tex.z-dn.net/?f=x%3D%5Csqrt%7B%282%2Ay%2Av%5E%7B2%7D%20%29%2F%28F%2Fm%29-g%7D)
x = 8.74m
The answer is a) -9.8 m/s^2, then momentarily zero, then +9.8 m/s^2, that is because during this kind of movement we have a = g, a acceleration and g acceler. of gravity, from zero of the axis to upward a = -g (a and g are contrary by direction), the can stopes before it falls, it means a = o, and during the free fall a = g (same direction).