The momentum of each cart is given by:

where
m is the mass of the cart
v is its velocity (at the bottom of the ramp)
To answer the problem, let's calculate the momentum of each of the 4 carts:
1)

2)

3)

4)

Therefore, the cart with greatest momentum is cart 3, so the right answer is
<span>- trial 3, because this trial has a large mass and a large velocity</span>
Revolution means orbiting around another body.
<span>A year is the time for a planet to complete one orbit around the Sun. 100% sure
</span>
Answer:
The net force is the vector sum of all the forces that act upon an object. That is to say, the net force is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out.
Note:
Please mark as Brainliest, or i'll go to your house and kidnapp your family, lol
(it's a joke btw)
Galileo successfully demonstrated that the balls took the same amount of time to reach the ground.
Choice B