Physics
bekatimber
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You are on roller blades on top of a small hill. Your potential energy is equal to 1,000.0 joules. The last time you checked your mass was 60.0 kilograms. a. What is your weight in newtons? b. What is the height of the hill? c. If you start skating down this hill, your potential energy will be converted to kinetic energy. At the bottom of the hill, your kinetic energy will be equal to your potential energy at the top. What will be your speed at the bottom of the hill?

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(1) Answers
adityaananda124

Since the given values are: PE: 1, 000.0 Joules Mass: 60.0 kg a. What is your weight in newton?  Weight = mass x gravity Weight = 60 kg x 9.8 m/s2 Weight = 588 N b. What is the height of the hill?  Potential energy = weight x height height = Ep ÷ Weight 1000 ÷ 600 = 1.67m c. If you start skating down this hill, your potential energy will be converted to kinetic energy. At the  bottom of the hill, your kinetic energy will be equal to your potential energy at the top. What will be  your speed at the bottom of the hill? Ek = 1/2xmxv2 Ek = 1000J 1/2x60xv 2 =1000 30ûv 2 =1000 V = √(1000÷30) = 5.8 m/s  

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