Determination of the force needed to stop a car

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How large an average force is required to stop a 1400 𝑘𝑔 car in 5.0 𝑠 if the car's initial speed is 25 𝑚/𝑠?
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Комментарии
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Dude, your handwriting is magnificent. I mean, your calculations are incredible, don't get me wrong, but a person who can write math and NOT have it look like a doctor's chicken scratch while maintaining order is a rare find.

Rufio
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Why don't you have more vieuws on your videos? They are really clear and good. Keep up this work. :)

Karma
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How much force is needed to stop a bus moving at 80.0 m/s velocity in just 3.0 seconds?

Help, what formula do I need to apply of this one? I'm kinda confuse of this because our teacher didn't give the mass of the bus:<

nizanare
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The calculation is valid only if the wheels are locked, making skid marks, more than sixty meters long. Real cars have braking systems inside the car and those friction forces are not pointing backwards.

goranmalmsten
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please help
Determine the force needed to push a stranded 800-kg car if it is required to be transported with an acceleration of 12 m/s2.

sarahchantea
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I have one doubt should we not multiply 1400Kg by 9.8 to convert to Newton

happymomentzz