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Question 13

The figure below shows a person's foot. In that figure, the Achilles tendon exerts a force of magnitude F=720N. What is the torque in N.m that this force produces about the ankle joint?

Question 13 The figure below shows a person's foot. In that figure, the Achilles tendon-example-1
User Christian Burgos
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1 Answer

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13 votes

The torque in N.m that this force produces about the ankle joint is 19.3 N m.

How calculate the magnitude of the torque?

The torque in N.m that this force produces about the ankle joint is calculated as follows;

τ = F× r × sin(θ)

where;

  • F is the applied force
  • r is the perpendicular distance
  • θ is the angle of inclination

The torque in N.m that this force produces about the ankle joint is calculated as;

τ = F× r × sin(θ)

τ = 720 N × 0.035 m × sin (50)

τ = 19.3 N m

Thus, the torque in N.m that this force produces about the ankle joint is 19.3 N m.

User Bennet
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