INPUT ARTICLE: Article: Acceleration is the change in velocity. If the acceleration is constant, the velocity continues to change at the same rate. We can describe this by multiplying acceleration and time, and adding the result to the initial velocity: vf=vi+at{\displaystyle v_{f}=v_{i}+at}, or "final velocity = initial velocity + (acceleration * time)" Initial velocity vi{\displaystyle v_{i}} is sometimes written as v0{\displaystyle v_{0}} ("velocity at time 0"). This will tell you how much the velocity increased (or decreased) over this time period. Example: A ship sailing north at 2 m/s accelerates north at a rate of 10 m/s2. How much did the ship's velocity increase in the next 5 seconds? a = 10 m/s2 t = 5 s (a * t) = (10 m/s2 * 5 s) = 50 m/s increase in velocity. Now you know the total change in the velocity. Add this to the initial velocity of the object, and you have your answer. Example (cont): In this example, how fast is the ship traveling after 5 seconds? vf=vi+at{\displaystyle v_{f}=v_{i}+at} vi=2m/s{\displaystyle v_{i}=2m/s} at=50m/s{\displaystyle at=50m/s} vf=2m/s+50m/s=52m/s{\displaystyle v_{f}=2m/s+50m/s=52m/s} Unlike speed, velocity always includes the direction of movement. Make sure to include this in your answer. In our example, since the ship started going north and did not change direction, its final velocity is 52 m/s north. As long as you know the acceleration, and the velocity at any one point in time, you can use this formula to find the velocity at any other time. Here's an example solving for the initial velocity: "A train accelerates at 7 m/s2 for 4 seconds, and ends up traveling forward at a velocity of 35 m/s. What was its initial velocity?" vf=vi+at{\displaystyle v_{f}=v_{i}+at}35m/s=vi+(7m/s2)(4s){\displaystyle 35m/s=v_{i}+(7m/s^{2})(4s)}35m/s=vi+28m/s{\displaystyle 35m/s=v_{i}+28m/s}vi=35m/s28m/s=7m/s{\displaystyle v_{i}=35m/s-28m/s=7m/s}

SUMMARY: Understand the velocity formula for an accelerating object. Multiply the acceleration by the change in time. Add the initial velocity. Specify the direction of movement. Solve related problems.

INPUT ARTICLE: Article: Coconut oil is commonly used to make skin brighter and lighter, and it's safe for use on most skin types. Apply about 1 teaspoon (4.9mL) of coconut oil to each nipple, and let it soak into the skin. It may take anywhere from 1-2 months to see results using this method. Be patient and apply the oil every day. This is one of the least expensive treatments for dark nipples, and it helps to add moisture to the nipple and areola. Sometimes, dry skin can cause the skin on your nipple and areola to darken. Purchase an all-purpose nipple cream, which is normally used for breastfeeding, and apply it to your nipples according to the package directions. Continue applying the cream regularly to prevent dryness. If you're currently breastfeeding, consult with your doctor to find a nipple cream that will work best for your needs. Most lightening creams on the market are safe for short-term cosmetic use. Look for a product that is specifically formulated for sensitive skin to prevent rashes or inflammation. If you experience tingling, itching, or redness after applying the cream, rinse the area with water thoroughly. Do not use lightening creams for longer than 6 weeks at a time. Prolonged use can lead to a buildup of harmful chemicals in your body. If you find a product that contains mercury-based ingredients or a more than 2% concentration of an ingredient called hydroquinone, do not use the product. These ingredients have been linked to harmful side effects, such as cancer. Be sure to check the ingredients list carefully before using any product. Never purchase products that are not approved for use in your country. This is dangerous and may possibly be illegal, depending on the item.

SUMMARY: Use coconut oil to naturally lighten the nipple and add moisture. Apply an all-purpose nipple cream to treat dryness. Consider using a commercial lightening cream for quick results. Avoid products that contain harmful bleaching ingredients.

INPUT ARTICLE: Article: All authentic Nike shoes have a tag sewn into them with their size, barcode and model number on it. You will recognize it most easily by the barcode. Look for it inside: The tongue The heel The arch The model number of your shoes is typically located under the size and above the barcode on the tag. It will be a six digit number followed by a three digit number (Example: AQ3366--601). If you still have the box that your Nike shoes came in, the model number will be printed on them. Look for it on the sticker that also displays the barcode and size.

SUMMARY:
Locate the tag inside your shoe. Find the model number on the tag. Find the model number on the box if the tag is missing.