When you click the tool menu , along with a stopwatch and rulers, you will see two tools you may not have used before. Clicking the dot tool will bring up a marker like this: . You can drag the marker to mark a position such as the starting point of the puck. The 2 on the tool means that you can place up to 2 markers. This can be useful for marking the starting and ending points for the puck.
Clicking line tool will bring up a horizontal line you can drag into place. This can be useful for measuring changes in height since the puck moves horizontally and vertically.
4.
Without collecting any data, describe the motion of the puck while it is on the curved portion of the ramp. Assume we can ignore friction. Be sure to include words like "velocity" and "acceleration".

talk back to him about the sport and show him your expertise or leave the room

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.