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3 years ago

1. You push a deak across the room. A force was applied. The object moves as a result of a force.

Physics

1 answer:

FinnZ [79.3K]3 years ago

6 0

Answer:

what is the question?

Explanation:

I'm not sure if this was a question because you gave the answer lol

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1) A particle move along the x axis, as x=tsquare-2t+1(SI unit). (a) The functions of its velocity and accelerator vector agains

Bond [772]

Answer:

$\text{I believe this is calculus, no? But I believe that there should be a y-component of position}\\\text{But based off of the information provided, here goes:}\\\text{(a)}\\x'(t)=v(t)=\frac{d}{dt}t^2-2t+1\\v(t)=2t-2\text{ is the velocity vector}\\v'(t)=a(t)=\frac{d}{dt}2t-2\\a(t)=2 \text{ is the acceleration vector}\\\text{(b)}\\\text{Average Velocity }=\frac{x_{f}-x{i}}{t_{f}-t_{i}}\\=\frac{1-1}{2}=0, \text{based off of the information provided, the average velocity in the first 2 seconds}: 0m/s$

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3 years ago

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Sonja [21]

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3 years ago

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3 years ago

An archer shoots an arrow into a target using a bow. If the "action" force is the force of the bowstring against the arrow, what

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3 years ago

Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.

ankoles [38]

Answer:

The correct answer is - 200000 J

Explanation:

We use the formula of kinetic energy:

The formula to calculate kinetic energy is,

Here,

Ec =1/2 x m x v^2

The mass of the roller coaster is, m = 1000 k g

The speed of the roller coaster is, v = 20.0 m/s

Therefore,

Ec=1/2 x 1000kg x (20m/s)^2 = 200.000Joule

200,000J

7 0

3 years ago

1. You push a deak across the room. A force was applied. The object moves as a result of a force.​

1. You push a deak across the room. A force was applied. The object moves as a result of a force.