1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sauron [17]
3 years ago
7

If a bowling ball is dropped out of an airplane,

Mathematics
1 answer:
Rom4ik [11]3 years ago
6 0

Answer: The velocity of the ball is 108.8 ft/s downwards.

Step-by-step explanation:

When the ball is dropped, the only force acting on the ball will be the gravitational force. Then the acceleration of the ball will be the gravitational acceleration, that is something like:

g = 32 ft/s^2

To get the velocity equation we need to integrate over time, to get:

v(t) = (32ft/s^2)*t + v0

where v0 is the initial velocity of the ball. (t = 0s is when the ball is dropped)

Because it is dropped, the initial velocity is equal to zero, then we get:

v(t) = (32ft/s^2)*t

Which is the same equation that we can see in the hint.

Now we want to find the velocity 3.4 seconds after the ball is dropped, then we just replace t by 3.4s, then we get:

v(3.4s) = (32ft/s^2)*3.4s = 108.8 ft/s

The velocity of the ball is 108.8 ft/s downwards.

You might be interested in
Please help! And I need the steps too!
fomenos

Answer:

-25

Step-by-step explanation:

Step 1: 2-9-5-3-2-2^{3}

Step 2: 2-9-5-3-2-8

Step 3: -25

7 0
3 years ago
The length of a rectangle is three inches more than the width. the area of the rectangle is 180 inches. find the width of the re
ch4aika [34]

We have a rectangle with length L that is 3 inches more than the width W. Then we can write this as:

L=W+3

The area of the rectangle is 180 square inches.

We have to find the width W.

As the area is equal to the product of the length and the width, we can write this equation and solve for W as:

\begin{gathered} A=180 \\ L\cdot W=180 \\ (W+3)\cdot W=180 \\ W^2+3W=180 \\ W^2+3W-180=0 \end{gathered}

We have a quadratic equation. The roots of this equation will be the mathematical solutions.

We can find the roots using the quadratic formula:

\begin{gathered} W=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ W=\frac{-3\pm\sqrt[]{3^2-4\cdot1\cdot(-180)}}{2\cdot1} \\ W=\frac{-3\pm\sqrt[]{9+720}}{2} \\ W=\frac{-3\pm\sqrt[]{729}}{2} \\ W=\frac{-3\pm27}{2} \\ W_1=\frac{-3-27}{2}=-\frac{30}{2}=-15 \\ W_2=\frac{-3+27}{2}=\frac{24}{2}=12 \end{gathered}

The solutions are W = -15 and W = 12.

The first one is not valid, as W has to be greater than 0.

Then, the solution to our problem is W = 12 in.

Answer: the width is W = 12 inches.

6 0
1 year ago
What is the answer and how did you work it out
Anna71 [15]

Answer: b

Step-by-step explanation:

10 x 10= 100

15 x 10= 150

100+150= 250

8 0
3 years ago
In your own words, explain what it means to dilate a triangle.
mrs_skeptik [129]

Answer:

It means that you take a triangle and make another one but this time it is not the same size of the first one but the same shape. In other words make it bigger or smaller than the first one.

7 0
3 years ago
What is the value of the expression<br> Alco
Marysya12 [62]

Answer:What is the value of the expression

What is the value of the expression

Alco

What is the value of the expression

Alco

Step-by-step explanation:What is the value of the expression

Alco

What is the value of the expression

What is the value of the expression

Alco

4 0
2 years ago
Other questions:
  • A 2018 poll of 3634 randomly selected users of a social media site found that 1799 get most of their news about world events on
    7·1 answer
  • The market bought grapes for $0.87 a pound and sold them for $1.09 a pound. What is the percent of increase rounded to the neare
    8·2 answers
  • I need help please????
    13·1 answer
  • Use the Internet to identify a major league ballpark in which the distance from home plate to the center field fence and the hei
    13·1 answer
  • FEE
    14·1 answer
  • What is the area of the trapezoid? A trapezoid has a base of 12 centimeters, a height of 16 centimeters, and a top side length o
    11·2 answers
  • Solve the system of linear equations by elimination -x+y=4;x+3y=4
    7·1 answer
  • Find the quotient<br> 4/3÷1 1/12
    15·1 answer
  • PLEASE HELP I GIVE 100 POINTS!!
    13·2 answers
  • HELP ME PLS TYYYYY .
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!