Answer Happy

2/3 points (graded) Stuck at the zoo one day, you take a video of a lemur crouching down and jumping straight up. When you get home you analyze the video to find three images: the lemur at rest in a crouched position, the lemur jumping up the moment his feet are leaving the ground, and the lemur at the top of his vertical trajectory. These images, along with the heights of the lemur's center of mass (a,b,c respectively) are shown in the diagram. The lemur has mass m. (a) Starting from the energy principle, find lemur's speed the moment his feet are leaving the ground. Your answer should be in terms of the given variables and known constants. sqrt(2*g*(cb)) /2.g. (c-b) (2) Assuming that the contact force of the ground on the lemur's feet is constant, find the magnitude of the contact force during the jump. m*g*(c-a)/(b-a) m-g-(c-a) b-a (3) Find the change in the lemur's internal (mechanical) energy during the jump. m*g*(c-a) m.g. (c-a) Submit X