The diagram below shows the path taken by an object in motion. The object started at paint A and travelled to point D and stopped there. The object started at point A
and went through points B and C to point D. The object travelled at constant speed
throughout the entire trip.
A
B
D
C ​

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.