Recent content by closertolost

  1. C

    Gravity/Planetary Forces Question - High School physics question

    ahah thanks very much! i have it now :)
  2. C

    Gravity/Planetary Forces Question - High School physics question

    oh, and then cram the equations together :P
  3. C

    Gravity/Planetary Forces Question - High School physics question

    so, do i put Fg=(6.67e-11 x 5.97e24)/d² Fg=(6.67e-11kg x 1.991e30kg)/1.479e11m-d² <---because d is the distance to the object, and 1.479e11 is the distance from sun to Earth (?)
  4. C

    Gravity/Planetary Forces Question - High School physics question

    Homework Statement Find the distance an object needs to be in between the sun and the Earth for it to be perfectly balanced (not moving) Homework Equations mass of Earth = 5.98e24 kg mass of sun=1.991e30 kg distance between sun and Earth = 1.479e11 m Fg=Gm1m2/r² The Attempt at a...
  5. C

    Projectile Motion: Calculating Landing Position and Velocity Components

    ahhh thanks again :D
  6. C

    Projectile Motion: Calculating Landing Position and Velocity Components

    so how do i find Vx and Vy? if i don't know theta?
  7. C

    Projectile Motion: Calculating Landing Position and Velocity Components

    OHHH right :P 5m/s for Vox and .5533 for t sooo 2.766 M and the answer in the book is 2.8 OH YEAH thanks SO much :)
  8. C

    Projectile Motion: Calculating Landing Position and Velocity Components

    so, i hope double posting is allowed but the EQ Vf= Vo + at means that Vf=Vxf or Vyf, and Vo=Vox or Voy?
  9. C

    Projectile Motion: Calculating Landing Position and Velocity Components

    okay, i can do that but i don't know EQ 3 :( Dy=Vy(t) + .5at² 1.5=0+4.9t² (my teacher uses 9.8 m/s²) sooo t=.5533?
  10. C

    Projectile Motion: Calculating Landing Position and Velocity Components

    okay, (Vo)y=0 because its only going forward. other formulas? Vx=Vcos(theta) Vy=Vsin(theta) Dx=Vx(t) Range/(Dy?)=V²(sin2(theta))/9.8 Dy=Vy(t) + .5at²
  11. C

    Projectile Motion: Calculating Landing Position and Velocity Components

    Hello hello, i have a question for you tonight: a ball on a 1.5m high table moving at a constant 5m/s rolls of the table. 1. where does it land 2. what are the Vx and Vy values JUST before it hits the ground thanks so much! Homework Statement Homework Equations The Attempt at a Solution...
  12. C

    Help with Projectiles shot horizontally problem

    sure, no problem!
  13. C

    Help with Projectiles shot horizontally problem

    sweet, thanks pbdude :P
  14. C

    Help with Projectiles shot horizontally problem

    hello, i have a problem just like that, and i didnt want to start a new thread, so can i post it here? anyways mine's like that but the height is 1.5m(a table) and the velocity(ball rolling off of it) is 5m/s...how do i solve for Vx, Vy, and Dx?