Recent content by y201

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    Gravitional Potential Energy and Elastic Potentional Energy

    this equation is for the second question right?
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    Gravitional Potential Energy and Elastic Potentional Energy

    can you start me off with few steps please?
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    Gravitional Potential Energy and Elastic Potentional Energy

    sadly, i don't even know where to start.
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    Gravitional Potential Energy and Elastic Potentional Energy

    Homework Statement 1) A rifle shoots a spring of mass 0.008kg and with a spring constant of 350 N/m. You wish to hit a target horizontally a distance of 15 m away by pointing the rifle at 45 degrees above the horizontal. How far should you extend the spring in order to reach the target...
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    Elastic Potential Energy and Hooke's Law Problem

    what answer did you get using the 0.15m?
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    Elastic Potential Energy and Hooke's Law Problem

    thanks a lot birkeland for your help. what did you get as the right answer?
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    Elastic Potential Energy and Hooke's Law Problem

    Homework Statement A small truck is equipped with a rear bumper that has a spring constant of 800,000 N/m. the bumper can be compressed up to 15cm without causing damage to the truck. What is the maximum velocity with which a solid 1000-kg car can collide with the bumper without causing damage...