The following three vectors represent the position of the hip, knee, ankle of a

Question

The following three vectors represent the position of the hip, knee, ankle of a cyclist in a 2- dimensional, stationary frame. Use the following diagram and values for vectors v1, v2, and v3 to answer the following questions. ???

v1 is top vector

v2 is middle vector

v3 is bottom vector

Thigh is top bold line

Shank is bottom bold line

The knee joint is the joint inbetween the two bold lines

v1 = (10.14, 2.52)m

v2 = (10.49, 2.14)m

v3 = (10.30, 1.82)m

Compute the angle of the knee at this instant in degrees.

Explanation / Answer

t t t t t t angle = angle (v1-v2 )- angle (v2-v3)= 73.34

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