Suppose that for all t, a particle moving with constant speed is parameterized by r (t). Given that the length of the path from t = 5 to t = 7 is equal to 8, find the value of the speed, llv (t) ll.

Answer: value of the speed, llv (t) ll = 4.0

Step-by-step explanation:

Given;

time interval t1 = 5, t2 = 7

Length of path (distance) L = 8

Speed = distance travelled / time taken

Speed = dL/dt

Speed = 8 / (t2-t1) = 8 / (7-5)

Speed = 8/2

Speed = 4.0

Since it's moving at constant speed the speed = 4.0