Recent content by imisschem

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    Physics problem: Radial acceleration, forces, and work & energy problem

    Okay, that makes sense! Thank you very much!
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    Physics problem: Radial acceleration, forces, and work & energy problem

    well actually for the most part yes. I'm just confused.. is there normal force at point A? because at the highest velocity i thought it canceled out. but i don't actually know.
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    Physics problem: Radial acceleration, forces, and work & energy problem

    not really...
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    Physics problem: Radial acceleration, forces, and work & energy problem

    nevermind, i got 2.05... calculator error
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    Physics problem: Radial acceleration, forces, and work & energy problem

    Okay.. PE1 + KE1 = PE2 + KE2 mgh + 1/2mv^2 = mgh + 1/2mv^2 (.5kg)(9.8)(2) + .5(.5)(1.5)^2 = (.5)(9.8)(1.9) + .5(.5)v^2 9.8+ .5625 = 9.31 + .25v^2 v= 8.2?
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    Physics problem: Radial acceleration, forces, and work & energy problem

    so.. I'm still confused. do i need to get the total energy first (by finding PE and KE and adding them), then account for Wnc because of friction, and THEN get the velocity?
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    Physics problem: Radial acceleration, forces, and work & energy problem

    it could have been .5 kg, the diagram was so hard to read since it was a copy. the height of the second one i believe was 1.9, but, those numbers are so close and the diagram seemed off.. i don't know. i just like.. even without the numbers i have no idea how to solve the problem other than...
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    Physics problem: Radial acceleration, forces, and work & energy problem

    Homework Statement In case the numbers are hard to read: Mass of the cart- .5g Initial Velocity- 1.5 m/s The height of the first hill is 2. Radius of the circle- .09m I need to find velocity (final, i think) force(s) on the cart at point A the magnitude of the force(s) at point...