Step-by-step explanation:
It is given that,
Distance, d = 15 m
Speed of Kim,v = 1.5 m/s
We need to find the equation that gives the relationship between Kim's distance from the starting line d and the time t. Speed of an object is given by :
speed = distance/time
⇒ 
Putting all the values,

Hence, this is the required solution.
Just think about it
right angles are the very definition of perpendicular
how many right angles in a full rotation? 4
answer is 4