6. (3 points) 011106 loves her rocket shoes! I investigated whether it would be safe to buy her some actual rocket shoes. To do this, I modelled Chloe as a vertical uniform bar of length L 2 80cm and mass 1% = 13kg with rocket shoes at the bottom, as in Figure 8. l modelled the rocket shoes as being massless and having negligible dimensions (assumed to be a point at the end of the rod). The shoes provide a combined constant thrust of F : 20N parallel to the ground. Although the shoes have wheels on them. I assumed that it would be equivalent to sliding on the ground with a kinetic friction coefcient of m, = 0.1. In order to not tip over while the rockets are on, Chloe will need to lean forwards or backwards. What angle will she need to make with the vertical to remain stable as the rocket shoes push her forward? Make a diagram and indicate whether she needs to lean forwards or backwards. M,L 9 Figure 8: A model for Chloe and he?" rocket shoes