Your vertical spring accelerometer has a 40 g mass hanging from it. You climb aboard the roller coaster that starts at rest and watch the accelerometer read 0.45 for 5 seconds while descending the first peak and then change to 2.8 for 2.5 seconds while going through the bottom of the first hill beginning your climb to the second peak. Your fully loaded car, complete with screaming people, is 2200 kg.

Question

Your vertical spring accelerometer has a 40 g mass hanging from it. You climb aboard the roller coaster that starts at rest and watch the accelerometer read 0.45  for 5 seconds while descending the first peak and then change to 2.8  for 2.5 seconds while going through the bottom of the first hill beginning your climb to the second peak. Your fully loaded car, complete with screaming people, is 2200 kg.

Damon · Answer

.45 WHAT? millimeters, meters? pounds ? m/s^2 ? Newtons? Moreover, what is the question? Did you make it up or copy it incorrectly from somewhere?