We have that
using a graph tool
see the attached figure
the answer is the first option
y<=3x
y>-2x-1
16m/s * 8s = 128m Multiply out the time to get the total displacement from the descent.
128m-71m = 57m Find the displacement from the descent to the ascent and then add that to 1364m to get your answer.
1421m
Answer:
I think it 7 ok ok ok ok ok ok