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Alja [10]
1 year ago
15

Cylinder a has a mass of 3 kg and cylinder b has a mass of 8 kg. Determine the speed of a after it has moved 2 m starting from r

est. Neglect the mass of the cord and pulleys
Mathematics
1 answer:
german1 year ago
3 0

The rate of change of an object's velocity with respect to time is defined as acceleration. The speed of a after it has moved 2m starting from rest is 1.98 m/s².

<h3>What is acceleration?</h3>

The rate of change of an object's velocity with respect to time is defined as acceleration. Vector quantities are accelerations. The orientation of an object's acceleration is determined by the orientation of its net force.

We can see that the acceleration of 3kg mass is double that of the 8kg mass. Therefore, Writing the force conservation equations altogether,

(T - 3g)/3 = 2(8g - 2T)/8

T= 3.6*g

Now, the Acceleration of 8kg mass can be written as

a = (8g - 2T)/8

  = 0.8g/8

  =0.1g

Therefore, acceleration of mass 3kg = 2×a = 0.2g

Further, as per the law of motion we can write,

v² - u² = 2as

Substituting the values, u =0; a=0.1g; s=2m; we will get,

v=1.98m/s

Hence, the speed of a after it has moved 2m starting from rest is 1.98 m/s².

Learn more about Acceleration:

brainly.com/question/12550364

#SPJ4

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What is the sum of the negative integers greater than -5
uranmaximum [27]
-10= ( -4)+(-3)+(-2)+(-1)
7 0
3 years ago
Please help me solve 1/3x&gt;-4
Naya [18.7K]

Answer:

Step-by-step explanation:

1/3x > -4

cross multiply

1>-4 × 3x

1>-12x

solve for x

x = -1/12

8 0
3 years ago
18. You are standing beside the Colorado River, 400 feet
Veseljchak [2.6K]
<h3>Answer: B. 781.6 feet approximately</h3>

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

Work Shown:

The horizontal portion is 400+166 = 566 feet. Label this as 'a', so a = 566. The vertical side is unknown, so b = x. The hypotenuse is c = 965

Use the pythagorean theorem

a^2+b^2 = c^2

566^2+x^2 = 965^2

x^2 = 965^2 - 566^2

x = sqrt( 965^2 - 566^2 )

x = 781.58108984289 which is approximate

x = 781.6 feet when rounding to one decimal place

6 0
3 years ago
Can some one do this and help me out
alexira [117]

Answer:

<h2><em><u>4</u></em></h2>

Step-by-step explanation:

Numbers less than 10 are = 1, 2, 3, 4, 5, 6, 7, 8, and 9.

Not multiple of 2 = 3, 5, 7, and 9

Composite number = 4

I eliminated the numbers to get the answer.

Hope this helped!

5 0
3 years ago
Solution to <br> -7+3w=4w-8
Contact [7]
-7 + 3w = 4w - 8

-7 = 4w - 8 - 3w

-7 = w - 8

-7 + 8 = w

1 = w

hope this helped, blessings! :)
8 0
3 years ago
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