A ball hits a horizontal spring. As the spring is compressed, the ball comes to a stop. Then the spring pushes the ball back in the direction it came. Which one of the following describes the momentum of the system? *

The momentum of the system is larger after the collision with the spring.

The momentum of the system is smaller after the collision with the spring.

The momentum of the system is conserved before and after the collision with the spring, but not during the collision.

The momentum of the system is conserved before, during, and after the collision with the spring.

i don’t know what the answer is i wish i

the total distance traveled by the car is

30km + 49km = 79 km .

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.

i think its c if i'm wrong