Asports car is travelling at a constant velocity v = 5.00 m/s. the driver steps on the gas, and the car accelerates forward. after 10.0 seconds, the driver stops accelerating and maintains a constant velocity v = 25.0 m/s. what was the car’s acceleration?

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.