Vectors need desperate help

[aesthetically]

View attachment 15877476445718900519448970889502.jpg
I am in shambles,help would be much appreciated.I do not understand how the question works

 

[lev888]

View attachment 18161
I am in shambles,help would be much appreciated.I do not understand how the question works

Vector-Valued Functions - Velocity, Acceleration, and Speed - Mathonline

mathonline.wikidot.com

 

[pka]

Instantaneous velocity: \(v(t)=r{\prime}(t)\)
speed: \(\|v(t)\|\)
acceleration: \(a(t)=v^{\prime}(t)=r^{\prime\prime}(t)\)