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xxMikexx [17]
2 years ago
14

PLEASE HELP ME I NEED AN ANSWER BY 10 PM OR I WILL GET AN F PLLLLLLLEEEEEEEEEEEEAAAAAAAAAAAASSSSSSSSSSSSSEEEEEEEEEEE

Physics
2 answers:
jolli1 [7]2 years ago
8 0
Here is a example of Newton

masya89 [10]2 years ago
3 0

Newton's 2nd law of motion:  Force = (mass) x (acceleration)

You need to find the acceleration, so divide each side by (mass):

Acceleration = (Force) / (mass)

Plug in the numbers you know from the question:

Acceleration = (300,000 Newtons) / (20,000 kilograms)

<em>Acceleration = 15 m/s²</em>

This is a huge acceleration.  It's 53% faster than a falling rock (gravity).

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A box accidentally drops from a truck traveling at a speed of 20.0 m/s and slides along the ground for a distance of 30.0 m Calc
Hoochie [10]

Answer:

a= - 6.667 m/s²

Explanation:

Given that

The initial speed of the box ,u= 20 m/s

The final speed of the box ,v=  0 m/s

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Lets take the acceleration of the box = a

We know that

v²= u ² + 2 a s

Now by putting the values in the above equation we get

0²=20² + 2 a x 30

a=- \dfrac{20^2}{2\times 30} \ m/s^2

a= - 6.667 m/s²

Negative sign indicates that velocity and acceleration are in opposite direction.

Therefore the acceleration of the box will be  - 6.667 m/s² .

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Mình cũng không biết làm bạn ơi =)))

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