2 years ago

Which motion is best explained as forces acting according to Newton's third law of motion?

1 answer:

8 0

D. A rocket pushes gases backward while the gases push the rocket forward

Newton’s third law: for every action there is and equal and opposite reaction

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A force of 45 newtons is applied on an object, moving it 12 meters away in the same direction as the force. What is the magnitud

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3 years ago

I drop an egg from a certain distance and it takes the egg 3.74 seconds to reach the ground. How high up was the egg?

Ulleksa [173]

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Explanation:

<u>Free Fall Motion </u>

When a body is left to move in the air with no friction, the motion is ruled only by the force of gravity. The vertical distance a body travels in the air after a time t is .

$\displaystyle y=\frac{gt^2}{2}$

We know the egg takes 3.74 seconds to reach the ground. The height it was launched from is

$\displaystyle y=\frac{(9.8)(3.474)^2}{2}$

$\displaystyle y=68.54\ m$

The closest correct option is

B. 68.6m

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3 years ago