Alright the paper was easy , but I have a doubt on the last question
So A was 4 and B was 3375
so the question said something had two motions, one for 15s and one greater than that , and they satisfy these equations:
V=4t-0.05t2 0<=t<=15
v= 3375/t2 t>15
Distance travelled during the first 15s (first motion is 225m)
now if u integrate the second motion how do u find C?