Answer:
Rocket 2 has highest acceleration.
Explanation:
Net force,
F = mass (m) × acceleration (a)
We have,
m₁ = 4.25 kg and F = 120 N
m₂ = 3.25 kg, F₂ = 120 N
m₃ = 5.5 kg, F₃ = 120 N
m₄ = 4.5 kg, F₄ = 120 N
Hence, it can be seen that the highest acceleration is of rocket 2.
The acceleration of the snowboarder is down along the incline
Explanation:
To find the acceleration of the snowboard, we have to analyze the forces acting along the direction parallel to the incline.
There is only one force acting in this direction, and it is the component of the weight parallel to the incline, given by
where
m = 75.0 kg is the mass of the man
is the acceleration of gravity
is the angle of the incline
Substituting, we find that the net force along the incline is:
According to Newton's second law, the net force on the snowboard is equal to the product between his mass and his acceleration:
where a is the acceleration. Therefore, solving for a, we find
And the direction of this acceleration is down along the incline.
Learn more about acceleration and Newton's second law:
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To solve this exercise we must apply the concepts related to the balance of forces.
For this particular case the force caused on the satellite from the planet must be equivalent to the Centrifugal Force, that is
Where,
G = Gravitational Universal Constant
M = Mass of earth
m = mass of satellite
r = Distance/Orbit
Using the concept of Period through the angular velocity we have,
Finally re-arrange the equation to find the orbit and replacing, we have,
Therefor the orbit would be 14400 kilometers