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kiruha [24]
3 years ago
10

Newton’s Laws of Motion are absolute in classical physics. One example that uses all three laws simultaneously is the firing of

a rocket in space. Hollywood uses this idea when they use fire extinguishers, or a rocket, in space to move about. Write a brief essay describing how Newton’s Laws explain how a rocket in space can move objects. Be sure to touch on each law within your essay.
Physics
2 answers:
inysia [295]3 years ago
5 0

Explanation:

Since there is no medium in space we need rockets as they can travel without any medium. They release the the thrust from the nozzle (which is action) and an equal and opposite force acts on the nozzle (which is reaction) to move it forward. This is as per the third law of motion (<em>Action Reaction Principle</em>) which states that every action has an equal and opposite reaction.

As per the second law of motion, the acceleration of an object depends on its mass and force applied on it. As the rocket moves it discards its unused parts which makes it lighter. Also the decreasing amount of fuel further reduces the mass. Both of these factors increases the acceleration of the rocket.

As per the first law of motion, <em>law of Inertia</em>, an object will not change its state of motion until an unbalanced force is applied on it. So, if the rocket is moving at a speed of x Km/h and we shut down the engine, it will keep moving at the same speed without using any extra fuel.

Ksju [112]3 years ago
4 0
Action and reaction are the rocket fuel going backwards and the rocket going forward. 3
f=ma 2
the rocket was at rest, 1, until there was a resultant external force 1 at which point 2 came in, with 3 alongside
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Explanation:

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PLEASE HURRY 20 PTS
Crank

Answer:

A. The electric field points to the left because the force on a negative charge is opposite to the direction of the field.

Explanation:

The electric force exerted on a charge by an electric field is given by:

where

F is the force

q is the charge

E is the electric field

We see that if the charge is negative, q contains a negative sign, so the force F and the electric field E will have opposite signs (which means they have opposite directions). This is due to the fact that the direction of the lines of an electric field shows the direction of the electric force experienced by a positive charge in that electric field: therefore, a negative charge will experience a force into opposite direction.

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3 years ago
How far will you travel if you run for 10. minutes at 2.0 m/s?
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The final answer is 1,200 m.

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