Last two question for the day. brainliest will be given

1. The slope of a velocity curve is acceleration. The slope is negative, but is not constant. The 2nd choice would be better:

... changing negative acceleration

2. 1.5 hours is 1.5×3600 = 5400 seconds, so the change in velocity over that time will be

... 12 m/s² × 5400 s = 64,800 m/s = 6.48×10⁴ m/s

Adding that value to the initial velocity gives

... 2.39×10⁴ m/s + 6.48×10⁴ m/s = 8.87×10⁴ m/s

as the final velocity. Your choice is correct.

answer: b

step-by-step explanation: