Impact force Definition and 103 Threads

  1. L

    How Can You Calculate the Impact Force of a Free-Falling Object?

    I wonder how could I calculate impact force of an object (eg. a stone) in a free fall impacting on the perfectly inelastic (perfectly hard) floor. I know: - m -mass of the falling object - h -height of the fall - v -speed at the time of impact - t -time it...
  2. L

    Impact Force Help: 70lb Girl Rollerblading & Knee Impact

    I need help on how to approach this problem and which equations I can use. It was a problem that we were supposed to think about, but even that's difficult. Here it is: If there is a 70 lb. girl roller blading at a constant speed of 5 mph and she suddenly hits a rock and trips downward, what...
  3. X

    Calculating Impact Force of an Arrow on Target

    This may be more of an engineering question, but here goes: I am designing an archery target and am trying to establish the impact force of the arrow on the target. The arrow is traveling at 100.6m/s and weighs 22.68g, what would be the force of the arrow on the target? How does this...
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