List and explain Newton’s Laws of Motion. Give an example for each.

Physics

1 answer:

irga5000 [103]3 years ago

8 0

Answer:

If you use the same force to push a truck and a car, the car will have more acceleration than the truck because the car has less mass.

It is easier to push an empty shopping cart than a full one, because the full shopping cart has more mass than the empty one. This means that more force is required to push the shopping cart.

When a person kicks a ball the person exerts force in a specific direction, that is the direction in which it will travel. In addition to this, the stronger the ball is kicked, the stronger the force we put on it and the further away it will travel.

Suppose two people are walking and among the two people, if one is heavier than the other, then the one weighing heavier will walk slower because the acceleration of the person weighing lighter is greater.

When riding a bicycle, the bicycle acts as mass and our leg muscles pushing on the pedals of the bicycle is the force.

Explanation:

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A 34,000-lb airplane lands on an aircraft carrier and is caught by an arresting cable. The cable is inextensible and is paid out

Firlakuza [10]

Answer:

F = 153637 lb

Explanation:

Let's use the kinematic equations to find the airplane's braking speed

v² = v₀² + 2 a d

The final speed is zero

a = - v₀² / 2d

Let's reduce the magnitudes

v₀ = 110 mi / h (5280 ft / 1 mile) (1 h / 360 s) = 161.33 ft / s

a = -161.33²/2 90

a = -144.60 ft / s²

Now we can use Newton's second law to find the tension

F = m a

F = (34000/32) 144.60

F = 153637 lb

6 0

4 years ago

Describe the different processes that lead to substantial internal heat sources for Jupiter and Saturn. Since these two objects

Softa [21]

Explanation:

The internal heat sources for Jupiter and Saturn derive from primordial heat resulting from the initial gravitational contraction of each planet. Jupiter also generates heat by slow contraction, which liberates substantial gravitational energy. A significant part of Saturn’s heat comes from the release of gravitational energy from helium separating from the lighter hydrogen and sinking to its core. What one considers to be a star is a matter of definition, as we discuss in more detail in the chapter on The Birth of Stars and the Discovery of Planets outside the Solar System. While both Jupiter and Saturn generate much of their energy internally, they are not large enough (by a significant factor) to support nuclear reactions in their interiors, and so are not considered to be stars.