Recent content by man_united_number_1

  1. M

    Help with Forensics: Physics Experiment with Blood Splatters

    The drops were dropped from a dropper onto a hard surface (desk bench in the lab) vertically from height 1m. If that helps anyone. My mate is bringing his high speed camera round in the next couple of days so hopefully that can shed some light. Thanks for your help.
  2. M

    Help with Forensics: Physics Experiment with Blood Splatters

    Im am currently doing a physics experiment involving blood splatters. Results No. of drops No. of splatters 2 114 3 237 4 337 The drops were dropped in succession and I was hoping someone could help me describe what was going on. In note form that's what I think happens. (diameter...
  3. M

    Projectile motion skateboarder throws a ball

    0 = 4t + 1/2 x -9.8 x t^2 0 = 4t - 4.9t^2 4.9t^2 = 4t t = 4/4.9 t = 0.816 secs
  4. M

    Projectile motion skateboarder throws a ball

    The equations we have been doing in class have us using the initial velocity in cartesian form, ie. 5m/s. Therefore I am having trouble using the initial velocity in the form it is in. maybe this... v(0) = c = ucos90 i + usin90 j + 5i + 4j v = (ucos90 +5)i + (usin90 - 9.8t + 4)j and maybe u...
  5. M

    Projectile motion skateboarder throws a ball

    A student skateboarding at a constant speed of 5m/s throws ball vertically into the air at 4m/s. She catches the ball as it returns to the ground. Let the ball be released from her hand at time t=0, the moment she passes the marker. A) What is the initial velocity of the ball? B) How long is...
  6. M

    Proving Pluto's Orbit Inside Neptune's - Maths Investigation

    Hi guys Im currently investigating planetary orbits in maths and one of our problems is to prove that Pluto spends a good deal of its time inside the orbit of Neptune. If anyone could help that would be great. Thanks Kyle
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