Recent content by mrb112103

  1. M

    Dropping the Ball: Solving a Physics Problem With 6.8 Joules of Force

    So, here is the problem: I have a .535kg ball that I drop from an unkown height, to create an impact with a force of 6.8 Joules. I need to figure out what height to drop the ball from. I figure it has something to do with accleration due to gravity and Netwons law F=mA or possibly a...
  2. M

    Calculate Distance for 5ft-lbs Impact w/ 1.18lb Sphere

    Still unclear... So if the Mass of the sphere (M) = 1.18 lbs = .535kg & the impact force = 5 ft. lbs. = 6.8 Joules, then is the velocity = to acceleration by gravity ~ 9.8m/s^2? So it's .5(.535kg * (9.8 m/s^2)) = 6.8 Joules ??
  3. M

    Calculate Distance for 5ft-lbs Impact w/ 1.18lb Sphere

    Hello, I am probably going to suffer some embarassment, once I see the answer to my question. Anwyay, I need to calculate the distance needed to create a 5ft-lbs. impact with a 1.18lb. sphere being dropped vertically onto a surface. How would I go about calucating the vertical distance...
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