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anonymous

  • 5 years ago

s=4.9t^2+v0t an object is thrown downward 500m with initial velocity of 4m/sec how long does it takes for the object to reach the ground

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  1. anonymous
    • 5 years ago
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    substitute v0=4 and s=500 and then solve the quadratic equation 4.9t^2+4t-500=0

  2. anonymous
    • 5 years ago
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    take positive answer as the time it takes

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