Answer on Acoustics Question for alzahra ali
force your cheekbone can take is 1300N. If a 0.14 kg solid ball strikes any part of your head at
39 m/s and stops in 1.2 × 10−3 s, which of the following is correct:
a) Only your forehead will be in danger of fraction.
b) Nor your forehead neither your cheekbone will be in danger of fraction
c) Only your cheekbone will be in danger of fraction.
d) Both your forehead and your cheekbone will be in danger of fraction
e) I cannot decide because the mass of the head is not known
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