Final answer:
To find the unit rate of Jade's freefall for the additional 660 meters, we calculate it by dividing distance by time, resulting in 55 meters per second. Without knowing the distance fallen in the previous 12 seconds, we cannot compare the unit rates.
Step-by-step explanation:
The student is asking to calculate the unit rate of Jade's freefall in meters per second and compare it to her previous rate. To determine the unit rate for the additional 660 meters Jade fell in the next 12 seconds, we divide the distance by the time, which gives us 660 meters ÷ 12 seconds = 55 meters per second.
To find out how much greater this rate is compared to the previous 12 seconds, we need information about the distance Jade fell in the first 12 seconds. Without that information, we cannot perform the comparison. If we assume the same distance was covered in the first 12 seconds, then there would be no difference in the unit rate. However, if the distance was different, we would calculate the unit rate for the first 12 seconds in the same way and subtract the smaller rate from the larger one to find the difference.