Recent content by geauxKTM

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    Elastic Collision: Kinetic Energy and Spring Compression

    Thank you very much, is this right?. A.Ui+W=Kf (50(9.8)5)+(40*20)=3250J B. 3250=500x^2
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    Elastic Collision: Kinetic Energy and Spring Compression

    Elastic collision, I think? Homework Statement 50kg boulder slides down a 5m high, 20m long hill against friction force 40N. At the top the boulder is moving at 2m/s. At the base of hill the boulder slides on a horizontal frictionless surface for a short distance and then collides with a tree...
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    Is Mechanical Energy Conserved During Swinging at a Lake Hangout?"

    I know its potential and kinetic energy
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    Ball hitting block, elastic collision

    Homework Statement .500kg ball attached to a cord that is 70 cm long. ball strikes a 2.5kg block at rest what is the speed of the ball just before hitting the block and collison is perfectly elastic find speed of ball and block after collision Homework Equations The Attempt at...
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    Is Mechanical Energy Conserved During Swinging at a Lake Hangout?"

    Homework Statement at a lake hangout there is a tree to swing from over the lake.. Friend is scared and doesn't let go and swings back and forth severall times without stopping. Is his mechanical energy conserved during the swinging process? Homework Equations The Attempt at a Solution
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    Calculating Normal Force on a Hill for a Bike and Rider - Quick HW Answers

    Homework Statement An 80KG(bike and rider) are going over the top of a hill shaped in a circle and arch is 60m. If moving at 35m/s at top of hill what's the size of the normal force on bike and rider. Homework Equations The Attempt at a Solution -849N?