The force required to keep a car from skidding in a turn varies jointly with the mass of the car m, the square of its speed v, and the curvature k of the turn. The curvature is the reciprocal of the radius of the turn, k=1/r. Suppose it takes 2800 lb of force to keep an 1800-lb car from skidding at 45 mi/h on a curve with radius 425 ft. What force is needed to keep the car from skidding at 50 mi/h on a curve with a radius of 440 ft?

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Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

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the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.