Ineed with this i'll give medal. car a has a mass of 1,200 kg and is traveling at a rate of 22 km/hr. it collides with car b. car b has a mass of 1,900 kg and is traveling in the same direction at 25 km/hr. which of the following statements is true? the momentum before the collision is equal to the momentum after the collision. the momentum before the collision is greater than the momentum after the collision. the momentum before the collision is less than the momentum after the collision.,

the correct answer is b

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.