1-1. Assume that a 50-kg runner trips and falls on his extended hand. If the bones of onearm absorb all the kinetic energy (fE) (neglecting the energy of the fall), what isthe minimum speed of the runner that will cause a fracture of the arm bone? Assumethat the length of arm is 1 m and that the area of the bone is 4 cm?.1-2. Repeat the calculations in Exercise 1-1 using impulsive force considerations. Assumethat the duration of impact is 10-2 sec and the area of impact is 4 cm?. Repeat thecalculation with area of impact=1 cm².1-3. From what height can a 1-kg falling object cause fracture of the skull (K** )?Assume that the object is hard, that the area of contact with the skull is 1 cm², andthat the duration of impact is 10-3 sec.

Given: The mass of the runner is 50 kg. The length of the arm is 1 m. The area of the bone is 4 cm2.…

Answered: 1-1. Assume that a 50-kg runner trips…

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