force divided by distance

Air exerts pressure, too, due to the weight of the air above you. Braking Force Formula The following formula is used to calculate the braking force of a car given a speed, weight, and stopping distance. But if you suddenly got transported to outer space, the inward pressure of the air pushing on you would be gone, and all that would remain would be the 14.7 pounds per square inch your body exerted outward. The greater the force that is applied on an object the further distance that object will travel. She holds a Master of Science in agricultural engineering from Texas A&M University. The force is along the straight line joining the two charges. Rats, says your brother. In physics, you perform work when you apply force to an object and move it over a distance. The work is positive when the both force and the displacement are in same direction and it is negative when force and the displacement are in opposite direction. Power, with units of watts, is the rate at which work is performed or energy is expended. You know you can also calculate average power as work divided by time: And the work done by the car is the difference in the beginning and ending kinetic energies: The car started at rest, so KEi = 0 J. Youre near the deep end of the pool, and using the handy pressure gauge you always carry, you measure the pressure on the back of your hand as\r\n\r\n $\"image2.png\"$ \r\n\r\nWhat force does the water exert on the back of your hand? \"https://sb\" : \"http://b\") + \".scorecardresearch.com/beacon.js\";el.parentNode.insertBefore(s, el);})();\r\n","enabled":true},{"pages":["all"],"location":"footer","script":"\r\n

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v_f = v_i + at

As it happens, you know that acceleration and the time the car wasaccelerated over:

v_f = 0 m/s + (4.60 m/s²)(5.00 s) = 23.0 m/s

Because the acceleration was constant, the average speed is

\n $\"image6.png\"/$ \n

Because v_i = 0 m/s, this breaks down to

\n $\"image7.png\"/$ \n

Plugging in the numbers gives you the average velocity:

\n $\"image8.png\"/$ \n

Great now you know the force applied and the average speed. By entering your email address and clicking the Submit button, you agree to the Terms of Use and Privacy Policy & to receive electronic communications from Dummies.com, which may include marketing promotions, news and updates. There is an electric force expression. Simply put, it is the gradient of the force versus deflection curve. {"appState":{"pageLoadApiCallsStatus":true},"articleState":{"article":{"headers":{"creationTime":"2016-03-26T17:21:05+00:00","modifiedTime":"2016-03-26T17:21:05+00:00","timestamp":"2022-09-14T18:06:51+00:00"},"data":{"breadcrumbs":[{"name":"Academics & The Arts","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33662"},"slug":"academics-the-arts","categoryId":33662},{"name":"Science","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33756"},"slug":"science","categoryId":33756},{"name":"Physics","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33769"},"slug":"physics","categoryId":33769}],"title":"How to Calculate Power Based on Force and Speed","strippedTitle":"how to calculate power based on force and speed","slug":"how-to-calculate-power-based-on-force-and-speed","canonicalUrl":"","seo":{"metaDescription":"In physics, you can calculate power based on force and speed.