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high school physics

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Annie rides her snowboard down a hill sloped at 25 degrees. The coefficient of kinetic friction between her and her skies is .15. If her mass is 55 kg, hw fast is she excelerating? Assuming she starts from rest and the equation is v=v+a*t, what is her velocity after 7 seconds?

How do you solve for the acceleration at an incline?

  • high school physics -

    I got that the acceleration is 5.6 meters per seconds sqaured because 308.7N/55kg.

    Therefore, the final velocity is 39.2 meters per second.


    Thanks all for your help!

  • high school physics -

    What mass of water will give 240 calories when its temperature droped from 80 degrees celsius to 68 degrees celsius?

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