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  1. M

    Physics Angle Problem

    Vyi= sqrt of vyf^2 + 2g divided by y?
  2. M

    Physics Angle Problem

    would i have to isolate the formula?
  3. M

    Physics Angle Problem

    so would the equation be Vyf^2 = Vyi^2 + 2g(delta y)
  4. M

    Physics Angle Problem

    velocity along the y axis
  5. M

    Physics Angle Problem

    the velocity ?
  6. M

    Physics Angle Problem

    how far (delta y) the water balloon would go?
  7. M

    Physics Angle Problem

    the water balloon should just graze the ceiling which is 3.3 meters tall and is going at a initial velocity at 9.7 m/s
  8. M

    Physics Angle Problem

    i need to find the angle. i really do not know which equation to use...
  9. M

    Physics Angle Problem

    Homework Statement Some enterprising physics students working on a catapult decide to have a water balloon fight in the school hallway. The ceiling is of height 3.3 m, and the balloons are launched at a velocity of 9.7 m/s. The acceleration of gravity is 9.8 m/s2 .At what angle must they...
  10. M

    Help With finding displacement in uniform acceleration

    delta x = 1/2 (1.51)(5.6394)^2 delta x = 24.0111384 that is what i got this time.....
  11. M

    Help With finding displacement in uniform acceleration

    i also did substitute 5.6394 s for the time rather than 7.8 seconds, and i got 66.4208532002 for delta x. but this was wrong. what did i do wrong?
  12. M

    Help With finding displacement in uniform acceleration

    Homework Statement A subway train starting from rest leaves a station with a constant acceleration. At the end of 7.8 s, it is moving at 11.778 m/s. What is the train’s displacement in the first 5.6394 s of motion? Answer in units of m Homework Equations a= velocity final - velocity...
  13. M

    Help With finding initial vertical speed

    ok, i have one more question i need help with....
  14. M

    Help With finding initial vertical speed

    so the initial vertical speed would be 11.8793939239 m/s ?
  15. M

    Help With finding initial vertical speed

    you add 141.12 to the 0 and then find square root of 141.12?
  16. M

    Help With finding initial vertical speed

    how do i set it to be that velocity initial squared is on the left side of the equal sign, and velocity final squared is on on the right side?
  17. M

    Help With finding initial vertical speed

    what equation should i use to calculate the initial vertical speed?
  18. M

    Help With finding initial vertical speed

    ohh ok... so would i use the same formula i used above to find the initial vertical speed?
  19. M

    Help With finding initial vertical speed

    the final velocity is not given. all that is given is v0, max height is 7.2 meters, and that the acceleration of gravity is 9.8 m/s/s/.
  20. M

    Help With finding initial vertical speed

    Homework Statement A Ball is thrown upwards. What is its initial vertical speed? The acceleration of gravity is 9.8 m/s2 and maximum height is 7.2 m ,. Neglect air resistance. Homework Equations Vfinal squared = velocity initial squared + 2g times change in y The Attempt at a...
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