Question

Table 2 shows the velocity of an object at different times.

Time(s)| Velocity(cm/s east)
0 | 0
5 | 7.8
15 | 24.3
20 | 31.8
35 | 57.3
___________________________


K they have given me the velocity for 5 s, 15, etc. but I want to know the velocity for the other numbers like 2s 4s, etc. How do I figure that out?