Linear acceleration at chest is a A a A x 2 a A y 2 a A z 2 Linear acceleration at thigh is a B a B x 2 a B y 2 a B z 2 Rotational rate at chest is o A o A x 2 o A y 2 o A z 2 Rotational rate at thigh is o B o B x 2 o B y 2 o B z 2. V 2 u 2 2 a s. You can rearrange this equation with a little algebra to solve for acceleration.
Now find the total.
The velocity involved is angular velocity and not linear velocity. 9rads - 6 rads 3rads. A v 2 u 2 2 s. The formula for Linear Acceleration.