What is the significance of extrapolating a graph for stability of a floating body​

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z