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seraphim [82]
3 years ago
13

Consider to cars traveling directly towards each other. Car A has twice the mass of Car B. In order for the cars to completely s

top when they collide, which of the following is true? (Remember, Momentum = mass * velocity)
Car A should have twice the velocity of Car B


Car B should have twice the velocity of Car A


Car A should have 4x the velocity of Car B


Car B should have 4x the velocity of Car A
Physics
1 answer:
Greeley [361]3 years ago
7 0

Please mark brainliest you answer is B).

Have a good night!

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If a 2kg ball has and initial velocity of
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Answer:

\boxed {\boxed {\sf 12 \ Newtons }}

Explanation:

Force is equal to the product of mass and acceleration.

F=m*a

We know the mass, but not the acceleration. Therefore, we must calculate it before we can calculate force.

1. Calculate Acceleration

Acceleration is the change in velocity over the change in time.

a=\frac{V_f-V_i}{t}

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V_f=10 \ m/s \\V_i= 4 \ m/s \\t= 1 \ s

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a=\frac{10 \ m/s-4 \ m/s }{1 \ s}

Solve the numerator.

a=\frac{6 \ m/s}{1 \ s }

Divide.

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Substitute the values into the fore formula.

F= 2 \ kg * 6  \ m/s^2

Multiply.

F= 12 \ kg*m/s^2

  • 1 kilogram meter per square second is equal to 1 Newton.
  • Our answer of 12 kg*m/s² is equal to 12 Newtons

F= 12 \  N

The force applies to the ball was <u>12 Newtons.</u>

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Answer:

I believe it's called rolling friction

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