As car is going around a circular curve with the radius R. Its position is given by the function: R(t) = R*cos*(w*t + 1/3*α*t^3) i + R*sin*(w*t + 1/3*α*t^3) What is the modulus of acceleration for R= 529 m, α= 0.009 s^-3, w = 0.4 s^-1, t = 12.0 s?

question a,b and c ty   For any vector quantity, be sure to always include the magnitude and direction(teacher asked)

The wheel is attached to the spring. The mass of the wheel is m=20 kg. The radius of the wheel is 0.6m. The radius of gyration KG=0.4 m. The spring's unstretched length is Lo=1.0 m. The stiffness coefficient of the spring is k-2.0 N/m. The wheel is released from rest at the state 1 when the angle between the spring and the vertical direction is 8-30°. The wheel rolls without slipping and passes the position at the state 2 when the angle is 0=0°. The spring's length at the state 2 is L2=4 m. _(kg-m²) (two decimal (9) The mass moment of inertial about the IC center is IIC=_ places) L₂ State 2 State 1

This was rejected the first time. Can you please state why this is being rejected?