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2 years ago

Two identical cars, each traveling at the same velocity, and having the same mass come to a stop

Physics

1 answer:

olya-2409 [2.1K]2 years ago

4 0

Answer:

The second option - same change in momentum, different force

Explanation:

They experience the same change in momentum, but the force on car A is greater.

p=m*v

Impulse, or change in p=F*t

We know the cars have the same change in momentum, because they both go from the same initial momentum (p=mv), to zero momentum. Therefore, both experience the same change in momentum. Since the time is different, but the change in momentum is the same, the force has to be different.

For example: if both cars had 200 kg*m/s of momentum at the start, and 0 at rest, the impulse is 200 kg*m/s

So,

p(a)= 200=F(0.3)

p(b)= 200=F(5)

Which force has to be greater to make the equations true? The force for Car A, of course!

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2 years ago

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kirill [66]

Answer:

It comes out the positive side of the battery and goes in to the negative side of the battery

Explanation:

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2 years ago

1. Which of the following transformations is an example of a β−-decay?

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Answer:

1. C: 31/14 Si becomes 31/15 because a nuetron

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Explanation:

I just took the quick check. Enjoy the answers I did not get to have

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2 years ago

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maxonik [38]

Answer:

Polaroid fliter

Explanation:

light can be polarized by using Polaroid filters

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hope this is useful--(have a good day)

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2 years ago

If a force of 0.05 N acts on a body of mass 100 grams. Determine the acceleration at which that body moves.

eduard

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100g= 0.1kg

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3 years ago

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