Answer:
The force F is created by the reaction of the Earth to the thrust of the rods, whereby the thrust is created by a force of action and reaction.
Explanation:
To answer this question, let's write Newton's second law of the two axes
Y Axis
Fy + N - W = 0
Fy + N = W
X axis
Fx - fr = 0
Fx = fr
The force F is created by the reaction of the Earth to the thrust of the rods, whereby the thrust is created by a force of action and reaction.
The direction of this force is along the length of the rods that are in an Angle, where the x and y components of the force come from
In general this force is small because the rubbing of the skis is small
Answer: on jupiter you would weigh the most and on mars you would weigh the least
Explanation:
Answer:
the instantaneous velocity is 51 m/s
Explanation:
Given;
acceleration, a = 2 + 5t²
Acceleration is the change in velocity with time.
![a = \frac{dv}{dt} \\\\a = 2 + 5t^2\\\\The \ acceleration \ (a) \ is \ given \ so \ we \ have \ to \ find \ the \ velocity \ (v)\\\\To \ find \ the \ velocity, \ integrate\ both \ sides \ of \ the \ equation\\\\2 + 5t^2 = \frac{dv}{dt} \\\\\int\limits^3_0 {(2 + 5t^2)} \, dt = dv\\\\v = [2t + \frac{5t^3}{3} ]^3_0\\\\v = 2(3) + \frac{5(3)^3}{3} \\\\v = 6 + 5(3)^2\\\\v = 6 + 45\\\\v = 51 \ m/s](https://tex.z-dn.net/?f=a%20%3D%20%5Cfrac%7Bdv%7D%7Bdt%7D%20%5C%5C%5C%5Ca%20%3D%202%20%2B%205t%5E2%5C%5C%5C%5CThe%20%5C%20acceleration%20%5C%20%28a%29%20%5C%20is%20%5C%20given%20%5C%20so%20%5C%20we%20%5C%20have%20%5C%20to%20%5C%20find%20%5C%20the%20%5C%20velocity%20%5C%20%28v%29%5C%5C%5C%5CTo%20%5C%20find%20%5C%20the%20%5C%20velocity%2C%20%5C%20integrate%5C%20both%20%5C%20sides%20%5C%20of%20%5C%20the%20%5C%20equation%5C%5C%5C%5C2%20%2B%205t%5E2%20%3D%20%5Cfrac%7Bdv%7D%7Bdt%7D%20%5C%5C%5C%5C%5Cint%5Climits%5E3_0%20%7B%282%20%2B%205t%5E2%29%7D%20%5C%2C%20dt%20%3D%20dv%5C%5C%5C%5Cv%20%3D%20%5B2t%20%2B%20%5Cfrac%7B5t%5E3%7D%7B3%7D%20%5D%5E3_0%5C%5C%5C%5Cv%20%3D%202%283%29%20%2B%20%5Cfrac%7B5%283%29%5E3%7D%7B3%7D%20%5C%5C%5C%5Cv%20%3D%206%20%2B%205%283%29%5E2%5C%5C%5C%5Cv%20%3D%206%20%2B%2045%5C%5C%5C%5Cv%20%3D%2051%20%5C%20m%2Fs)
Therefore, the instantaneous velocity is 51 m/s
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planting the same crops consistently without roations, over irrigating to the point where it is streams of water instead of farm lanf and deep plowing that exposes the delicate soil to the air resistance causing it to harden </span>
