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Nezavi [6.7K]
3 years ago
5

A skateboarder with a mass of 45 kilograms is riding on a skateboard with a mass of 2.5 kilograms. What should be the velocity o

f the skateboarder if she has to attain a momentum of 264 kilogram meters/second?. . Blaaah Physics.-.
Physics
2 answers:
DanielleElmas [232]3 years ago
6 0
Given momentum (P) and mass (m), the velocity of the object is dividing the momentum by the mass. The total mass of the skateboarder and the skateboard is 47.5 kg. Performing the operation,
                              v = P / m
                             v = (264 kg m/s  / 47.5 kg) = 5.56 m/s
Therefore, the velocity would be 5.56 m/s. 

klasskru [66]3 years ago
5 0
So momentum is just velocity times mass, this means Momentum = Velocity x Mass.
We can rearrange this to be Velocity = Momentum/Mass.

Since we know momentum and mass we can now solve.

Velocity = 264/(45+2.5)
              = 5.56 m/s
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Answer:

4:28

Explanation:

4:28am

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6 0
3 years ago
Determine qual é a carga elétrica de um corpo que possui 1 milhão de partículas?
MaRussiya [10]

Answer:

This can be translated to:

"find the electrical charge of a body that has 1 million of particles".

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Then the total charge of the body will be:

Q = 1,000,000*-1.6*10^-19 C = -1.6*10^-13 C

If we have the inverse case, where we in each particle we have one more proton than the number of electrons, the total charge will be the opposite of the one of before (because the charge of a proton is equal in magnitude but different in sign than the charge of an electron)

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But commonly, we will have a spectrum with the particles, where some of them have a positive charge and some of them will have a negative charge, so we will have a probability of charge that is peaked at Q = 0, this means that, in average, the charge of the particles is canceled by the interaction between them.

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3 years ago
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I hope this is the correct way to solve

3 0
3 years ago
Please give answer with solution​
UNO [17]
250 m. for a longer explanation or solution look at this article, i’m sorry.
https://www.quora.com/A-projectile-is-thrown-so-it-travels-a-maximum-range-of-1000m-How-high-will-it-rise
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3 years ago
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