  Usually, this refers to an Anterior Cruciate Ligament tear, where the knee is in a fixed position and a twisting force is applied to it. This manifests itself as knee we â¦ akness when weight is put on it, with the sensation of the knee slipping forward. Damage of the meniscal cartilage around it is also common.
A wheel starts from rest and has an angular acceleration that is given by Î±(t) = (6.0 rad/s4)t2. The time it takes to make 10 rev is: B. 3.3 seconds. A wheel starts from rest and has an angular acceleration that is given by Î±(t) = (6.0 rad/s4)t2. After it has turned through 10 rev its angular velocity is: B. 75 radians per second. A wheel is spinning at 27 rad/s but is slowing with an angular acceleration that has a magnitude given by (3.0 rad/s^4)t^2.
The acceleration can consist of two components one is the radial acceleration vector represented by ar and other is tangential component of acceleration at. Acceleration at any point in the curved point is equal to vector sum of tangential and radial acceleration. Path of the particle is shown above in the Figure 1. Direction of the acceleration vector is also shown which is at any point on the curved path is the resultant vector of vector ar and at.