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
goldfiish [28.3K]
3 years ago
13

To watch the video

Mathematics
1 answer:
Anettt [7]3 years ago
7 0

Answer:

The ball shall keep rising tills its velocity becomes zero. Let it rise to a height h feet from point of projection.

Step-by-step explanation:

Let us take the point of projection of the ball as origin of the coordinate system, the upward direction as positive and down direction as negative.

Initial velocity u with which the ball is projected upwards = + 120 ft/s

Uniform acceleration a acting on the ball is to acceleration due to gravity = - 32 ft/s²

The ball shall keep rising tills its velocity becomes zero. Let it rise to a height h feet from point of projection.

Using the formula:

v² - u² = 2 a h,

where

u = initial velocity of the ball = +120 ft/s

v = final velocity of the ball at the highest point = 0 ft/s

a = uniform acceleration acting on the ball = -32 ft/s²

h = height attained

Substituting the values we get;

0² - 120² = 2 × (- 32) h

=> h = 120²/2 × 32 = 225 feet

The height of the ball from the ground at its highest point = 225 feet + 12 feet = 237 feet.

You might be interested in
49w = −8<br> what is the value of w
Anna71 [15]

Answer:

w= -0.163265306122449

Step-by-step explanation:

49w = -8

divide both sides by 49

w= -8/49 = -0.163265306122449

check answer by multiplying -0.163265306122449  by 49

49 * -0.163265306122449 = -8

6 0
3 years ago
Read 2 more answers
The expression 17n+11 represents the perimeter of a triangle. The other two sides measure 4n+5 and 5n+6. A simplified expression
frutty [35]

Answer: 8n

==========================================================

Explanation:

The two sides 4n+5 and 5n+6 have the terms 4n and 5n which add to 9n. We need 8n to add onto this so that we end up with 17n. In other words, 4n+5n+8n = 9n+8n = 17n

So that is why the answer is 8n. We don't have anything added or subtracted to it because the "+5" and "+6" in the two given expressions (4n+5 and 5n+6) add up to 5+6 = 11 which is what we want in the perimeter expression 17n+11

Side 1 = 4n+5

Side 2 = 5n+6

Side 3 = 8n

Perimeter = (side1) + (side2) + (side3)

Perimeter = (4n+5) + (5n+6) + (8n)

Perimeter = 4n+5 + 5n+6 + 8n

Perimeter = (4n+5n+8n) + (5+6)

Perimeter = 17n+11

So that confirms we have the proper expression for the third missing side.

3 0
3 years ago
Read 2 more answers
Which number line shows 1 to 4 divided into fourths?
romanna [79]

Answer:

the second one dose I believe

3 0
2 years ago
Elijah walked 6 miles in 3 hours.what was his walking rate in hours per miles?
postnew [5]

Answer:

2 Miles per hour

Step-by-step explanation:

velocity (speed) formula is distance/time.

In this case, 6/3=2

5 0
2 years ago
A shoekeeper uses this formula to work out the
ElenaW [278]

Answer:

12.6

Step-by-step explanation:

1.8X7

7x1=7

0.8x7=5.6

7+5.6=12.6

3 0
3 years ago
Other questions:
  • Can Julia cut a triangular patch for a quilt that has side lengths of 1 1/2 inches, 2 inches, and 4 inches? 
    10·1 answer
  • There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist wants to make 495 milliliters, ho
    8·1 answer
  • Ratio 30 seconds to 5 min write as a fraction in lowest terms
    5·1 answer
  • MATH<br><br>ANSWER and I will give you brainiliest ​<br>​
    7·1 answer
  • Simplify 6-(9x+7)+2x=<br>​
    11·2 answers
  • H varies directly to the cube of c.<br> When H = 40, C = 2.<br> (a) Express H in terms of c.
    10·1 answer
  • 1. Solve MMXXVII -MCMXCII<br>A.LV<br>B. XLV<br>C. XXXV<br>D. XXV<br>E. XV​
    13·1 answer
  • There is a big triathlon in town, and you are trying to take pictures of your friends at multiple locations during the event. Ho
    15·1 answer
  • The product of a number and negative 3 is less than 27
    15·1 answer
  • Two hundred fifty tickets are sold at a fund raiser. If Sarah buys 15 tickets, the probability that she will win the prize quilt
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!