18NB🏳️‍⚧️, die/diens (they/them)

  • 1 Post
  • 210 Comments
Joined 1 year ago
cake
Cake day: July 1st, 2023

help-circle







  • Da Bald Eagul@feddit.nlto196@lemmy.blahaj.zonePhysics rule
    link
    fedilink
    arrow-up
    7
    arrow-down
    4
    ·
    edit-2
    8 days ago

    The question states “how fast”, not “how far”, thus you need to give the acceleration at that moment.

    At t=0, the boy and girl both haven’t moved, so their positions are 0. The distance between them is also 0, as is their acceleration.

    The boy’s distance in meters is t*1.524, the girl’s distance is t*0.3048. The distance between them is sqrt( b^2 * g^2 ). The velocity is the current distance minus the previous distance.

    At t=1, b=1.524m, g=0.305, d=sqrt( g^2 * g^2 )=0.465, v=d-d^(t-1)=0.465m/s.

    At t=5, b=7.62, g=1.524, d=11.613, and v=4.181m/s.

    Edit: fixed markdown