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yawa3891 [41]
3 years ago
13

In 1665 Sir Isaac Newton proposed the fundamental law of gravitation as a universal force of attraction between any two bodies.

What does this theory state about the force that makes an apple fall and the force that keeps the moon in its orbit?
Physics
2 answers:
Wittaler [7]3 years ago
6 0
Cause of the graventation rings around earth it keeps the moon from going anywhere
katrin [286]3 years ago
6 0

Explanation:

According to Newton's law of gravitation, the force of attraction acting between the objects is directly proportional to the product of the masses of the objects and is inversely proportional to the square of the distance between them.

Every particles attracts every other particles in the Universe according to Newton's law of gravitation. This is due to the gravitational force acting between the objects.

The force of gravitation depends on the masses on the objects. The mass of the earth is larger than the apple. Then, an apple will fall on the earth.

An apple falls on the earth due to the force of gravitation between an apple and the earth.

The mass of the earth is larger than the moon. The force of gravitation is responsible to keep the moons in its orbits. It is balanced by the centripetal force. Otherwise, the moon will fall on the earth.

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sketch a graph of position vs. time for a person starting 0.4 m away and standing still. Include an explanation of your predicti
Korvikt [17]

Answer:

Straight line parallel to time axis.

Explanation:

The slope of the position time graph gives the velocity.

As the man is still, that means the velocity is zero. So, the slope of the graph is zero. It is a straight line parallel to time axis.

5 0
3 years ago
A bullet of mass 120g is fired horizontally into a fixed wooden block with a speed of 20m\s. The bullet is brought to rest in a
prohojiy [21]

Answer:

1) F = 24 N

2) Distance = 1 m

Explanation:

We are given;

Mass; m = 120 g = 0.12 kg

Initial velocity; u = 20 m/s

Final velocity; v = 0 m/s since it came to rest.

Time; t = 0.1 s

We can calculate acceleration from Newton's first equation of motion;

a = (v - u)/t

a = (0 - 20)/0.1

a = -200 m/s²

1) magnitude of the resistance will be;

F = ma

F = 0.12 × (-200)

F = -24 N

Since, we are dealing with the magnitude, we will take the absolute value. Thus, F = 24 N

2) To find the distance moved by the bullet, we know that;

Distance = Average speed × time

Thus;

Distance = ((v + u)/2) × t

Distance = ((0 + 20)/2) × 0.1

Distance = 1 m

4 0
2 years ago
Which of the following are examples of projectile motion?
liubo4ka [24]

Answer: A. a basketball being shot toward the basket

Explanation: The definition of projectile motion is the motion of an object thrown or projected into the air, subject to only the acceleration of gravity. So, the basketball is the object being thrown and the person throwing the ball is aiming it to go into the basket making that the path of trajectory. Hope that makes sense and helps!

5 0
2 years ago
Needing help with this please
Gemiola [76]

Answer:

So A we cant sadly do because we cant draw. B is going to be kinetic. Thats because static friction means it stays in one place, for kinetic it means moving. So it will be 0.05 as the coefficient of the friction. Sadly, I cannot calculate C. You will have to use trigonemetry but I cannot fit that big an explanation.

Answer to A: the free body diagram would be the ski things inclined with gravity, friction, and  air resistance. I except you know which directions

Answer to B: Kinetic friction is the answer.

Answer to C: Find on own, I cannot write super big explanations - use trigonometry.

6 0
2 years ago
Please help me......
snow_tiger [21]
A. The statement is true
6 0
3 years ago
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