I think D. None of the above
I think that it
The answer is letter C. <span>A train travels from the bottom of a hill to the top of a hill, its moves slower by the time it reaches the top is an example of negative acceleration.
In physics, acceleration can be described as an objects change of velocity. When an object gains velocity, it is positive acceleration, and negative acceleration for the opposite.
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Answer:
the maximum vertical height the person in the cart can reach is 18.42 m
Explanation:
Given;
mass of the person in cart, m₁ = 45 kg
mass of the cart, m₂ = 43 kg
acceleration due to gravity, g = 9.8 m/s²
final speed of the cart before it goes up the hill, v = 19 m/s
Apply the principle of conservation of energy;
![mgh_{max} = \frac{1}{2}mv^2_{max}\\\\ gh_{max} = \frac{1}{2}v^2_{max}\\\\h_{max} = \frac{v^2_{max}}{2g} \\\\h_{max} =\frac{(19)^2}{2\times 9.8} \\\\h_{max} = 18.42 \ m](https://tex.z-dn.net/?f=mgh_%7Bmax%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7Dmv%5E2_%7Bmax%7D%5C%5C%5C%5C%20gh_%7Bmax%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7Dv%5E2_%7Bmax%7D%5C%5C%5C%5Ch_%7Bmax%7D%20%3D%20%5Cfrac%7Bv%5E2_%7Bmax%7D%7D%7B2g%7D%20%5C%5C%5C%5Ch_%7Bmax%7D%20%3D%5Cfrac%7B%2819%29%5E2%7D%7B2%5Ctimes%209.8%7D%20%5C%5C%5C%5Ch_%7Bmax%7D%20%3D%2018.42%20%5C%20m)
Therefore, the maximum vertical height the person in the cart can reach is 18.42 m
Q. The energy emitted from the sun is a product of ________.
A. Fusion
Answer:0.000002
Explanation: I Looked It Up lol