The right leg of an athlete on a rowing machine can be modeled as a linkage as shown, where A represent the ankle (which is stationary), K the knee, and H the hip. At the instant when 0 = 75°, the shank AK has an angular velocity of 1 rad/s and an angular acceleration of 1.45 rad/s2, both counter-clockwise. Determine the velocity and acceleration of the hip Hat this instant in time. H 442 mm 310 mm 375 mm 0 O A Xconcept 2

The right leg of an athlete on a rowing machine can be modeled as a linkage as shown, where A represent the ankle (which is stationary), K the knee, and H the hip. At the instant when 0 = 75°, the shank AK has an angular velocity of 1 rad/s and an angular acceleration of 1.45 rad/s2, both counter-clockwise. Determine the velocity and acceleration of the hip Hat this instant in time. H 442 mm 310 mm 375 mm 0 O A Xconcept 2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

The right leg of an athlete on a rowing machine can be modeled as a linkage as shown, where A represent
the ankle (which is stationary), K the knee, and H the hip. At the instant when 0 = 75°, the shank AK has an
angular velocity of 1 rad/s and an angular acceleration of 1.45 rad/s², both counter-clockwise. Determine the
velocity and acceleration of the hip Hat this instant in time.
H
442 mm
K
310 mm
375 mm
A
The velocity of the hip His -0.375 m/s.
The acceleration of the hip His 0.4097 m/s2
concept 2

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