I need a little guidance with these questions because I am stuck with either the way I am solving the problem or with calculations.

Please help!

This Question: 1 pt 1 of 9 (0 complete) Consider the following position function. a. Find the velocity and speed of the object. b. Find the acceleration of the object r(t) = (212 + 9, 212 + 13,t2), fort= 0 a. What is the velocity of the object? v(1) = (0 What is the speed of the object? lv(t) =(Simplify your answer.) b. What is the acceleration of the object? a(t) =( Enter your answer in each of the answer boxes. Type here to search 9 WThis Question: 1 pt 2 of 9 (0 complete) Consider the following position function. Find (a) the velocity and the speed of the object and (b) the acceleration of the object. r (t ) = (2,15 , e - 1 ), fort= 0 (a) v(1) = (0 (b) a(t) = (0 Enter your answer in each of the answer boxes. Type here to search 9 wThis Question: 1 pt 5 of 9 (0 complete) Given an acceleration vector, initial velocity (Up.Vo,Wo) , and initial position (Xo.Yo.Zo) : find the velocity and position vectors for t2 0. a(1) = (0,0, 10), (up. Vo.Wo) = (7,8,0), (Xo.yo.zo) = (0,4,0) What is the velocity vector? V(1) = (20 What is the position vector? r(t) = (30 Enter your answer in each of the answer boxes. Type here to search ma NEKA 9 WThis Question: 1 pt 1 T of9(0 complete)v b Find the length of the following two-dimensional curve. 12 min)\"2 rm: 3=T ,rorOstsa L : (Type an exact answer, using radxcals as needed) Enter your answer m the answer box. ,0 Type here to search