Post a New Question

Physics

posted by .

When the dried-up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.64 m/s at an angle of 30.0˚ below the horizontal. The seed pod is 0.465 m above the ground.
How long does it take for the seed to land?
What horizontal distance does it cover during its flight?

  • Physics -

    For the time, solve the equation

    y = 0.465 + 2.64 sin30 -(g/2) t^2 = 0
    = 0.465 + 1.32 -4.9 t^2
    There will be two solutions. Take the positive one.

    For the horizonal distance traveled, that would be

    X = 2.64 cos30*t = 2.29 t
    Use the t from the first part.

  • Physics (correct me if I'm wrong) -

    shouldn't 2.64 (sin30) by multiplied by time?

    y = 0.465 + 2.64 (sin30)t -(g/2) t^2 = 0

  • Physics -

    Yes, thanks for catching that. :-)

    0 = 0.465 + 1.32 t -4.9 t^2
    also needed a "t" in it.

  • Physics -

    Where did you get -4.6 from?

  • Physics -

    I mean -4.9

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question