Question

angular acceleration vector of the dumbbell with respect to todinate system that is specified? What is its magnitude? 6. (3 points) Chloë loves her rocket shoes! I investigated whether it would be safe to buy her some actual rocket shoes. To do this, I modelled Chloë as a vertical uniform bar of length L I 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 20 N 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 coefficient of k=0.1. In order to not tip over while the rockets are on, Chloë 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. 13 kg with rocket shoes at the bottom, as in Figure 8. = 80 cm and mass M F M,L Figure 8: A model for Chloë and her rocket shoes.

Answer 1

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