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When the Moon is directly overhead at sunset, the force by Earth on the Moon, $F_{\mathrm{EM}},$ is essentially at $90^{\circ}$ to the force by the Sun on the Moon, $F_{\mathrm{SM}},$ as shown below. Given that $F_{\mathrm{EM}}=1.98 \times 10^{20} \mathrm{N} \quad$ and $F_{\mathrm{SM}}=4.36 \times 10^{20} \mathrm{N}, \quad$ all other forces on the Moon are negligible, and the mass of the Moon is $7.35 \times 10^{22} \mathrm{kg}$ determine the magnitude of the Moon's acceleration.

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Physics 101 Mechanics

Chapter 5

Newton's Laws of Motion

Motion Along a Straight Line

Motion in 2d or 3d

Applying Newton's Laws

Cornell University

University of Michigan - Ann Arbor

University of Winnipeg

Lectures

04:01

2D kinematics is the study of the movement of an object in two dimensions, usually in a Cartesian coordinate system. The study of the movement of an object in only one dimension is called 1D kinematics. The study of the movement of an object in three dimensions is called 3D kinematics.

03:28

Newton's Laws of Motion are three physical laws that, laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to those forces. These three laws have been expressed in several ways, over nearly three centuries, and can be summarised as follows: In his 1687 "Philosophiæ Naturalis Principia Mathematica" ("Mathematical Principles of Natural Philosophy"), Isaac Newton set out three laws of motion. The first law defines the force F, the second law defines the mass m, and the third law defines the acceleration a. The first law states that if the net force acting upon a body is zero, its velocity will not change; the second law states that the acceleration of a body is proportional to the net force acting upon it, and the third law states that for every action there is an equal and opposite reaction.

04:58

The Force Exerted on the M…

02:48

02:54

The Moon, whose mass is $7…

01:41

02:49

The Moon is $3.9 \times 10…

01:24

Calculate the force of gra…

07:13

(II) Find the net force on…

01:56

The force with which the e…

03:04

The Moon's mass is $7…

01:23

Find the acceleration due …

01:54

(I) Calculate the accelera…

00:40

Lunar Gravity Compare the …

question number 15 This is the moon and force by our on the moon is like this and at 90 degrees and other force by the sun on the moon is acting so the resultant off these two forces is magnitude off the resultant off these two forces is equal to under route 1.98 in 2. 10 to the power 20. Well, the square Plus they didn't wreck it. Four point 36 into 10 to the power 20 Holy square Because we know that the resultant off two forces magnitude off the resultant off two perpendicular forces is a call to F as, um is Squire plus as e m is square. So solving this, we will get the magnitude off the resultant force four point 78 into 10 to the power 20 Newton. This is the magnitude off the result in fourth F. Now let us find the X elation. X elation is equal to the net. Force F upon the mass off the moon, that force is four point 78 into 10 to the power contained Newton's. They were aided by the mosque seven point 35 in tow tend to the power 22 kg. This will give us the X elation off the moon. 6.5 Indo 10 to the power minus three meter per second Squired. This is the required X elation off the moon.

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