For both ramp heights, you calculated the average speed for the car’s entire motion (both on the ramp and the floor), as well as the average speed for two intervals of the same motion
(interval on the ramp and interval on the floor). Write a brief paragraph on how these “intervals”
helped describe the car’s motion more accurately than the average speed of the entire motion.
Be sure to explain how this accuracy could have been improved by breaking the car’s motion
down into even smaller intervals.
plz ANSWE ILL GIVE U BRAINLIEST OR SOME THING

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

hypothesising or postulating

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.