The order of most to least potential energy is letter B has the most, then C and then A. A car (represented by the blue dot) moves along the curved track. What is the direction of normal force FN on the driver when the car reaches the lowest point 'A' of the curve? Upward Backward Downward Forward
![A plot of potential energy versus position is shown for a 0.27 kg particle that can move along an x axis as it is acted upon by a conservative force. In the graph, UA = 9.9 J, UC = 20 J and UD = 31 J (corresponding to x > 8 ). The particle is observed at the point where the potential energy U forms a curved "hill" to have kinetic energy of 4.22 J (At this point UB = 14 J). What is the difference in particle speed when it is located at x = 6.5 m compared to x = 3.5 m ? Assume mechanical energy is conserved. [Find the speed for x = 6.5 m and subtract the speed for x = 3.5 m] Δv = m/s What is the range of possible particle motion? [Find the turnaround location for the left and right side. The particle turns around when v = 0. Take the difference in these (right value minus left value) to get the range of the particle's motion] |Δx| = m](https://www.doubtrix.com/uploads/editor/2476129399HnqfCEtbEQ.png)
![A plot of potential energy versus position is shown for a 0.203 kg particle that can move along an x-axis as it is acted upon by a conservative force. In the graph, UA = 8.6 J, UC = 23 J and UD = 30 J (corresponding to x > 8 ). The particle is observed at the point where the potential energy U forms a curved "hill" to have kinetic energy of 4.98 J (At this point UB = 13 J). What is the difference in particle speed when it is located at x = 6.5 m compared to x = 3.5 m ? Assume mechanical energy is conserved. [Find the speed for x = 6.5 m and subtract the speed for x = 3.5 m] Δv = m/s What is the range of possible particle motion? [Find the turnaround location for the left and right side. The particle turns around when v = 0. Take the difference in these (right value minus left value) to get the range of the particle's motion] |Δx| = m](https://www.doubtrix.com/uploads/editor/9561212003pxsDdCqdzA.png)
