Answer: The graph will start at (t, v) = (0, 200) decreasing linearly with a slope of -0.2 to the point
(200 - 50) / 0.2 = 750 so the point is (750, 50).
At this point the slope increases to -2 and forward motion stops in an additional
50 / 2 = 25 seconds so the point is (775,0)
distance covered in the first section
vf² = vi² + 2ad
d₁ = (vf² - vi²) / 2a
d₁ = (50² - 200²) / 2(-0.2)
d₁ = 93750 m
distance covered in the second section
d₂ = (0² - 50²) / 2(-2)
d₂ = 625 m
for a total distance of
d = 93750 + 625
d = 94375 m
Step-by-step explanation:
