16) The following three vectors represent the position of the hip, knee and ankle of a cyclist in a 2- dimensional, stationary frame. Use the following diagram and values for vectors V₁, V2, and V3 t answer the following questions. Each vector is written with x and y components: v1=(V₁x,V₁y) V₁ V₂ V3 V₁ = (9.71, 2.52)m V₂ = (10.18, 2.20)m V3 = (9.76, 1.68)m a) Compute the length of the cyclist's thigh (knee to hip) {hint: V₂ + Vthigh = V₁} b) Compute the length of the cyclist's shank (knee to ankle) {hint: V₂ +Vshank = V3} c) Compute the angle of the knee at this instant, both in radians and degrees.

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