4 years ago

Why would it be important to know Newton’s second law in the real world?

1 answer:

3 0

of motion f=ma is very important because it shows the relationship between force and motion. it allow you to calculate the acceleration and velocity and position. and object with know force is incredibly valuable for scientist,engineer, inventor etc.

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A feather is dropped on the moon from the height of 1.4m. The acceleration of gravity on the moon is 1.67ms-1. Determine the tim

Zinaida [17]

1.3s

Explanation:

Given parameters:

Height = 1.4m

Gravity on moon = 1.67ms⁻¹

Unknown:

Time for feather to fall = ?

Solution:

To solve this problem, we are going to use one of the motion equation that relates time, gravity and height.

H = ut + $\frac{1}{2} g t^{2}$

Sine the body was dropped from rest, initial velocity is zero;

H = height

u = initial velocity

t = time

g = acceleration due to gravity

since u = 0;

H = $\frac{1}{2} g t^{2}$

1.4 = $\frac{1}{2}$ x 1.67 x t²

t = 1.3s

learn more:

Gravity brainly.com/question/10934170

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After pulling the string tight, Miguel talked into his aluminum can. Brian could hear Miguel's voice through the aluminum can at

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Answer:

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Answer:

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All machines are not 100% efficient because of C. Friction

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