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PhysNov7

# PhysNov7 - How much force would it take to accelerate a...

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November 7 physics

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In: A slingshot has a force constant of 3000 N/m. If you pull it back . 4 m, how much energy is stored in the slingshot?
Objective : To present your knowledge of energy forms Success criteria: Calculate: Work Kinetic energy Work/kinetic energy theorem Gravitational potential energy Elastic potential energy.

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Homework check
A man pulls a 40,000 kg train 80 m with a force of 15,000 N. There is a resistive force of 4,000 N. How much work did he do?

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A bullet train with a mass of 30,000 kg is going 100 m/s. What is it’s kinetic energy?

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Unformatted text preview: How much force would it take to accelerate a bullet train (mass 30,000 kg) to a speed of 100 m/s in 2000 meters? A window washer with a mass of 80 kg has a potential energy of 20,0000 J. How high is he above the ground? A kid jumps in a trampoline. The trampoline has a K of 300 N/m and has a potential energy of 8000 J when he is at the bottom. How far does he stretch the trampoline? Quiz Synthesis I own/ I don’t Out: A roller coaster goes over the top of a 10 m hill with a speed of 20 m/s. What types of energy does it have?...
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