A shank has a moment of inertia about the knee joint of 0.18 kg∙m^2. Assume that the quadriceps muscles (vasti and the rectus femoris) contr

Question

A shank has a moment of inertia about the knee joint of 0.18 kg∙m^2. Assume that the quadriceps muscles (vasti and the rectus femoris) contract to extend the knee. If the vasti produce a torque of 0.4 Nm about the knee joint, what torque (in Nm) about the knee joint must the rectus femoris produce to cause a shank angular acceleration of 23.2 rad/s^2?

in progress 0
Bình An 4 years 2021-07-20T03:29:50+00:00 1 Answers 17 views 0

Answers ( )

  1. taiduc
    0
    2021-07-20T03:31:23+00:00
    Reply

    Answer:

    Torque will be equal to 4.176 N-m

    Explanation:

    It is given moment of inertia about knee joint I=0.18kgm^2

    Angular acceleration produced \alpha =23.2rad/sec^2

    We e have to find the torque

    Torque is equal to \tau =I\alpha , here I is moment of inertia and \alpha is angular acceleration.

    Torque will be equal to \tau =0.18\times 23.2=4.176Nm

    So torque is equal to 4.176 N-m

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )