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lapo4ka [179]
2 years ago
7

yvonne van gennip of the netherlands ice skated 10.0 km with an average speed of 10.8 m/s. suppose vang ennip crosses the finish

line at her average speed and takes a huge boquet of flowers handed to her by a fan. as a result her speed drops t o10.01 m/s. if van gennip’s mass is 63.0 kg what is the mass of the boquet?
Physics
1 answer:
Sophie [7]2 years ago
3 0

By conservation of momentum, we will find that the mass is 4.97 kg.

So in the original system, we have two objects, the bouquet of flowers of mass M that is not moving and Yvonne, which has a mass of 63 kg and a speed of 10.8 m/s.

Then the total momentum of this system is:

P = (63kg)*(10.8m/s) + M*(0 m/s) = 680.4 kg*m/s.

Remember the conservation of momentum, thus, the final momentum must be equal to the above one.

In the final situation, Yvonne and the bouquet move together with a speed of 10.01 m/s,

Then the final momentum is:

P' = (63kg + M)*(10.01 m/s)

And that must be equal to the initial momentum, then we have the equation:

(63kg + M)*(10.01 m/s) = 680.4 kg*m/s.

630.63kg*m/s + M*10.01 m/s = 680.4 kg*m/s.

M*10.01 m/s = 680.4 kg*m/s - 630.63kg*m/s = 49.77 kg*m/s

M = (49.77 kg*m/s)/(10.01 m/s) = 4.97 kg

So the mass of the bouquet is 4.97 kg

If you want to learn more about momentum, you can read:

brainly.com/question/19636349

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Answer:

The percentage of the weight supported by the front wheel is  A= 19.82 %

Explanation:

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mg*(2.58-0.8) - Nb *(3.02-0.8) = 0

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Weight percentage supported by front wheel = 19.82% answer

6 0
3 years ago
If a total force exerted by water in a container with a bottom area of 3 square meters is 900 newtons, what's the water pressure
anyanavicka [17]
<h3>Answer:</h3>
  • p=300 Pa
<h3>Explanation:</h3>

_______________

S=3 m²

F=900 N

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p=F/S=900 N / 3 m² = 300 Pa

6 0
2 years ago
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MAXImum [283]

Answer:

The momentum of the ball is 500 kg·m/s

Explanation:

The momentum is given by Mass × Velocity

The given parameters are;

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The momentum of the ball = 500 kg·m/s

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Explanation:

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Hence, The angular acceleration is 0.209\ rad/s^2

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