Question

What is the net joint moment at the ankle ($M_a$) given the following information? Assume the foot is static (a = 0 m/s$^2$; $\alpha$= 0 rad/s$^2$) and compute all moments about the foot's centre of mass. The figure below includes a free-body diagram of the problem. $\vec{r}_{GRF}$=[0.18, -0.04] m $\vec{F}_{GRF}$=[-58, 357] N $\vec{r}_{Ra}$ = [-0.18, 0.02] m $m_f$ = 1.03 kg Your Answer: Answer units

          What is the net joint moment at the ankle ($M_a$) given the following information?
Assume the foot is static (a = 0 m/s$^2$; $\alpha$= 0 rad/s$^2$) and compute all moments about
the foot's centre of mass. The figure below includes a free-body diagram of the
problem.
$\vec{r}_{GRF}$=[0.18, -0.04] m
$\vec{F}_{GRF}$=[-58, 357] N
$\vec{r}_{Ra}$ = [-0.18, 0.02] m
$m_f$ = 1.03 kg
Your Answer:
Answer units

What is the net joint moment at the ankle (Ma) given the following information?
Assume the foot is static (a = 0 m/s^2; α= 0 rad/s^2) and compute all moments about
the foot's centre of mass. The figure below includes a free-body diagram of the
problem.
r⃗GRF=[0.18, -0.04] m
F⃗GRF=[-58, 357] N
r⃗Ra = [-0.18, 0.02] m
mf = 1.03 kg
Your Answer:
Answer units

Added by Christopher H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Arjun Singh

Step 1

The moment arm is the perpendicular distance from the line of action of the force to the ankle joint. Given that TGRF = [0.18, -0.04] m and Ra = [-0.18, 0.02] m, we can calculate the moment arm as follows: r = Ra - TGRF = [-0.18, 0.02] - [0.18, -0.04] = Show more…

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What is the net joint moment at the ankle (Ma) given the following information? Assume the foot is static (a = 0 m/s^2; Ï‰ = 0 rad/s^2) and compute all moments about the foot's center of mass. The figure below includes a free-body diagram of the problem. TGRF = [0.18, -0.04] m Ra TGRF T Ra = [-0.18, 0.02] m Ma mf = 1.03 kg FGRF mfg Your Answer: Answer units