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Elanso [62]
2 years ago
8

Astronaut Bill's mass is 77 kg. He is floating through the space station at a steady rate of 2.6 m/s. His friend John appears di

rectly in front of Bill and throws a pillow at him at 25 m/s. The pillow weighs 6.9 kg. Bill catches the pillow and holds on to it. How fast is Bill moving after he catches the pillow?
Chemistry
1 answer:
Elenna [48]2 years ago
3 0

The final velocity of Bill after he catches the pillow is 4.44 m/s.

The given parameters:

  • Mass of Bill, m1 = 77 kg
  • Velocity of Bill, u1 = 2.6 m/s
  • Mass of the pillow, m2 = 6.9 kg
  • Initial velocity of the pillow, u2 = 25 m/s

<h3>What is conservation of linear momentum?</h3>
  • The principle of conservation of linear momentum states that the total momentum of an isolated system is constant.

The final velocity of Bill is determined by applying the principle of conservation of linear momentum as follows;

m_1 u_1 + m_2 u_2 = v(m_1 + m_2)\\\\77(2.6) + 6.9(25) = v(77 + 6.9)\\\\372.7 = 83.9v\\\\v = \frac{372.7}{83.9} \\\\v = 4.44 \ m/s

Thus, the final velocity of Bill after he catches the pillow is 4.44 m/s.

Learn more about conservation of linear momentum here: brainly.com/question/7538238

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Count the numbers of atoms on each sides and try to get the same amount of quantity on each sides, so you'll eventually get "balanced".

or

Watch this video: "How to Balance CH3OH + O2 = CO2+ H2O (Combustion of Methanol)"

Good luck with future work! Keep studying chemistry!

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You add 100. 0 g of water at 60. 0°c to 100. 0 g of ice at 0. 00°c. Some of the ice melts and cools the water to 0. 00°c. When t
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The Mass of ice is 69.12g.

What is mass?

It is a dimensionless quantity that expresses a particle or object's mass. The accepted unit of mass under the International System (SI) is the kilogram.

What is temperature?

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first calculate the amount of heat as follows;

q= mass of water C= (0°C-55°C)

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Both sweets and chocolates contain high amount of fat and sugar. When Radhika is eating the same before and after every meal then it means she is consuming it in excess.

When we eat too much of sweets and chocolates then its remains get deposited in between our tooth and when they remain over there for hours then more amount of bacteria is formed.

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