Recent content by ruck101

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    How Far Will a Coin Roll Before Stopping?

    I get the same exact thing.
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    How Far Will a Coin Roll Before Stopping?

    reply dang, I did that the first time I tried this..lol. ok let me reattempt this.
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    How Far Will a Coin Roll Before Stopping?

    Reply thanks for the reply. ok, I converted 3.45 cm to m = .0345 m then, I got the linear velocity = 11.4 x .0345 = .3933 m/s next, I got the linear acceleration = -.96 x .0345 = -.03312 m/s^2 ok, I plug all of this into a kinematics equation and get 5.94 m, does this sound right? Thanks!
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    How Far Will a Coin Roll Before Stopping?

    Here's the problem: diameter = 3.45 cm angular speed = 11.4 rad/s angular deceleration = -.96 rad/s How far does the coin roll before coming to a stop? How would I set this problem up? Thanks!
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    Power Calculation for a Car Accelerating to 87 km/hr in 6.3 s | 940 kg Mass

    Problem How would you find this same type of problem, but in addition, there's a constant air resistance force? Thanks.
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    Banked Curve with Friction Problem

    Banked Curve Hehe, guess I should have done that in the first part. Anyway, I drew a freebody diagram and got the Normal Force = 11119 N, and the Friction force = Normal x Coefficient = 5448 N. Is that the only centripital force or is there also the sin component of the weight? I've added sin...
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    Banked Curve with Friction Problem

    Hey all! Brand new to PF. Anyway, I'm having trouble with a problem involving centripital force. Here are the givens: Friction coefficient = .49 Angle = 19 degrees Radius = 46m mass= 1200 kg Question - How fast can the car take the curve without skidding to the outside? Thanks ahead of...
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