Watts up? (Unit 8)
Unit 8 focuses on Work and Energy. The equation to solve for work is Work = Force x Change in Distance. So for example, if Jon had a mass of 60 kilograms and Aleina pushed him 5 meters at the acceleration of 0.5 meter/second/second in 20 seconds, we can calculate how much work is done. By using the F = ma equation, we can solve for the force first. (60 kg x 0.5 m/s/s = 30 N). After solving for the force, we can use it to solve for work! (30 N x 5 meters = 150 joules).
We can also solve for the amount of power by using the equation Power = Work/Time.
Since we know work = 150 joules and 20 seconds was our given amount of time, we can use that to solve for power. (150 joules/ 20 seconds = 7.5 watts).
No comments:
Post a Comment