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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.

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skad [1K]

Answer:

Below.

Step-by-step explanation:

Let x be the Annika's weekly income.

2/25 of x  =  42

2x/25  =  42

x  =  42(25/2)

x  =  525

Her weekly income is $525.

6 0
2 years ago
The hypotenuse of a triangle is 30 cm long and the length of leg A is 15 cm. How long is leg B? (round the the nearest tenth) PL
makvit [3.9K]

Answer:about 26

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3 0
3 years ago
B) Name the triangle based on its angles.​
Serhud [2]

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6 0
3 years ago
An elevator at a construction site has a maximum capacity of 3325 pounds. If the elevator operator weighs 225 pounds and each ce
postnew [5]
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5 0
2 years ago
PLEASE ANSWER!
butalik [34]

We just plug in, simplify, and solve.

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26

Option C should be your answer.

5 0
3 years ago
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