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3 years ago

How is the force of gravity mathematically related to the factors that answer Question I?

Physics

1 answer:

Vadim26 [7]3 years ago

3 0

Answer:

Probably the more correct version of the story is that Newton, upon observing an apple fall from a tree, began to think along the following lines: The apple is accelerated, since its velocity changes from zero as it is hanging on the tree and moves toward the ground. Thus, by Newton's 2nd Law there must be a force that acts on the apple to cause this acceleration. Let's call this force "gravity", and the associated acceleration the "acceleration due to gravity". Then imagine the apple tree is twice as high. Again, we expect the apple to be accelerated toward the ground, so this suggests that this force that we call gravity reaches to the top of the tallest apple tree.

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A particle moves in the xy plane with constant acceleration. At time zero, the particle is at x = 6.0 m, y = 10.0 m, and has vel

mihalych1998 [28]

Explanation:

Given that,

Position of the particle at t = 0,

$y=(6i+10j)\ m$

Velocity of the particle at t = 0

$u=(1i+6j)\ m$

Acceleration of the particle,

$a=(5i+7j)\ m/s^2$

Solution,

(a) Let v is the velocity at t = 10 s. Using the equation of kinematics as :

$v=u+at$

$v=(1i+6j)+(5i+7j)10$

$v=(51i+76j)\ m/s$

(b) Let y' is the position at t = 1 s. Again using second equation of kinematics as :

$y'=y+ut+\dfrac{1}{2}at^2$

$y'=(6i+10j)+(1i+6j)1+\dfrac{1}{2}\times (5i+7j)1^2$

$y'=\dfrac{19}{2}i+\dfrac{39}{2}j$

(c) Magnitude of y',

$|y'|=\sqrt{(\dfrac{19}{2})^2+(\dfrac{39}{2})^2}$

|y'| = 21.69 meters

Direction of the y',

$tan\theta=\dfrac{y}{x}$

$tan\theta=\dfrac{39/2}{19/2}$

$\theta=64.02^{\circ}$

Hence, this is the required solution.

4 0

3 years ago

1. What is the pull that all objects exert on each other?

Andrei [34K]

Answer:

Im pretty sure 1 is gravity, 2 is force

Explanation:

8 0

3 years ago

At time t=0 a 2150 kg rocket in outer space fires an engine that exerts an increasing force on it in the +x−direction. This forc

vredina [299]

Answer:

two people who are not going to be able to make it to the office and I will be there at the house and I will be there in a few minutes and I'll be there in a few

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3 years ago

Do single atoms emit electromagnetic radiation?

love history [14]

No atoms create electricity and radiation

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3 years ago

Think about a carbon atom that is released into the atmosphere from the burning of wood in a campfire. If it were to go through

Musya8 [376]

Following are the steps that would follow during carbon cycle

1. A producer like plant absorbs carbon dioxide from the atmosphere during the process of photosynthesis.

2. A primary consumer like rabbit gets its food by eating the plant or grass leaves

3. A secondary consumer like wolf eats rabbit .

4. Wolf dies and decomposes and during decomposition carbon returns to the atmosphere.

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3 years ago