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sarah_hendrix7

  • one year ago

Please help??

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  1. sarah_hendrix7
    • one year ago
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  2. shubhamsrg
    • one year ago
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    How comfortable are you with eqns of motion ?

  3. Outkast3r09
    • one year ago
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    Did you figure out your question?

  4. AravindG
    • one year ago
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    please post this in physics group

  5. Outkast3r09
    • one year ago
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    what is the problem? A lot of problems assigned to mathematics classes are actually simple physics problem

  6. PhoenixFire
    • one year ago
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    @sarah_hendrix7 Do you still need help?

  7. sarah_hendrix7
    • one year ago
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    @PheonixFire If you're willing, I'd love some help.

  8. binarymimic
    • one year ago
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    what do you know about an object in freefall? what equation governs its trajectory? in this case it's a single dimensional trajectory. think of the acceleration due to gravity.

  9. PhoenixFire
    • one year ago
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    Use the equation \[x_f=x_o+v_ot+{1 \over 2}at^2\] Xf is final position Xo initial position Vo initial velocity a acceleration (in this case just gravity) t time For your problem you can set Xo=0, Vo=0. plug in the rest and you'll know how far the object has fallen after time of 1.1 sec. I know this equation is not really needed because the values get set to 0 so here's the shorter version people tend to remember more: \[h={1 \over 2}at^2\]Now you know for reference where this equation is from.

  10. PhoenixFire
    • one year ago
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    For question (b) take the first equation I gave you and rearrange for Vo. plug in the values and you should get the answer.

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