BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
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Textbook Question
Chapter 11, Problem 5AP
Explain how the velocity of the ball in Problem 4 would differ if the stick were swung at a 30° angle to the direction of motion of the horse.
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Based on the attached figure (Figure
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(A)
Swing
Stance-
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(B)
Walk
LH
LF
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Trot
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(C)
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Stance
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Pace
LH
LF
RHO
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Gallop
LH
LF
RH
RF
-
(D)
Reciprocal
inhibition
(V1, V2b)
Time
Flexor
module
E/R
CE
Flexor
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muscles
E/R
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O Excitatory neuron (E)
Inhibitatory neuron (I)
Oa-Motor neuron (M)
rla-INS
(V1, V2b)
M
Extensor
muscles
Level of transection
of spinal cord
a) In walking, intervals for lifting each leg are
longer than in galloping.
O b) In walking, each leg is lifted in a specific
sequential order, whereas in galloping the two
hind legs are synchronized to be lifted at the
same time followed by the front legs.
O c) In walking, the interval at which each leg is
moving is different, whereas in galloping the
Chapter 11 Solutions
BASIC BIOMECHANICS
Ch. 11 - The relative angle at the knee changes from 0 to...Ch. 11 - Identify the angular displacement, the angular...Ch. 11 - How many revolutions are completed by a top...Ch. 11 - A kickers extended leg is swung for 0.4 s in a...Ch. 11 - The angular velocity of a runners thigh changes...Ch. 11 - A tennis racquet swung with an angular velocity of...Ch. 11 - A 1.2-m golf club is swung in a planar motion by a...Ch. 11 - David is fighting Goliath. If Davids 0.75-m sling...Ch. 11 - A baseball is struck by a bat 46 cm from the axis...Ch. 11 - A polo players arm and stick form a 2.5-m rigid...
Ch. 11 - Explain how the velocity of the ball in Problem 4...Ch. 11 - A majorette in the Rose Bowl Parade tosses a baton...Ch. 11 - A cyclist enters a curve of 30-m radius at a speed...Ch. 11 - A hammer is being accelerated at 15 rad/s2. Given...Ch. 11 - A speed skater increases her speed from 10 m/s to...
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