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207133 1 6 2558

1. quadriceps patella (kneecap) T 1.30 kN F femur ?

2. 60.0 kg 10.0 kg 30.0 cm 10 kg 25.0cm 5.00 cm

a) ?b) a) ?c) ?

3. (Downward-Facing Dog) N

o

N cm a) b)

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4. suspensory ligaments

a) 1 x103Pa ( 20 ) 3% ligaments 1 b) suspensory ligaments 0.002 N

c) 60 a) 60 3 x 103Pa

5. (head-on collision)

a) k

m v0

() xmax

b)

c) (force density) 5.0 x 105N/m2 ( ) 2,500 cm2 k 65 kg 30 cm

d) ? ?

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6. 60 kg 1,000 kg 20.0 m 5.0 ms tibia 1.4 x 10 8 N/m2 tibia 3.60 cm2 tibia ?

7. ( decay) (neutrino) ( particle)

a) b) c)