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4 years ago

12

A Car is traveling westward with a constant velocity of 20 m/s, what is the net force acting on the car?

1 answer:

gtnhenbr [62]4 years ago

8 0

According to Newton's second law of motion, the force acting on an object is equal to the mass multiplied by the acceleration of the moving object. Since the object is moving in a constant velocity, acceleration is zero. Hence regardless of the mass of the car, the force acting is zero provided that air resistance and friction is negligible

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Two concentric circles with radii of 19 and 29 units bound a shaded region. A third circle will be drawn with area equal to that

Elden [556K]

I hope this was helpful

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3 years ago

You take measurements of the distance traveled by an object that is increasing its speed at a constant rate. The distance travel

Serhud [2]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

Given:

$s_1 = 21 \ \ t_1 = 1\\\\s_2 = 59 \ \ t_2 = 2\\\\s_3 = 141 \ \ t_3 = 4$

All points are on the graph including its quadratic function, in order to install their coordinates to values of x and y with the following values:

$y= ax^2 + bx + c\\\\21=a+b+c$ Inserting the coordinates of the first point

$y= ax^2 + bx + c\\\\59 =4a+2b+c$ Inserting the coordinates of the second point

$y= ax^2 + bx + c\\\\141=16a+4b+c$ Inserting the coordinates of the third point

5 0

3 years ago

A certain fish grows so that after t years of life its length is given by L(t) = 9 − 1/5t inches. Calculate the average rate of

vfiekz [6]

Answer:

Step-by-step explanation:

Given the length of a fish after t years modeled by the equation

L(t) = 9 − 1/5t

The average rate of growth is expressed as;

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Hence the average rate of growth over the first year of life is -1/5 in/year

7 0

3 years ago

In the picture below. Please help.

mylen [45]

(22,11) it equals the about when you plug it in

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3 years ago

Draw a quadratic function below with zeros at -3 and 5 that is also concave up.

tia_tia [17]

Hello from MrBillDoesMath!

Answer:

x^2 - 2 x - 15

Discussion:

( x - (-3)) * ( x- 5) =

(x +3) (x-5) =

x^2 - 2 x - 15

It is a concave upward curve (looks like a "u") as the x^2 term causes the function to grow larger as x approaches +\- infinity.

Thank you,

MrB

8 0

4 years ago