The ground is very dry (i.e it has very low percentage of water content)
Explanation:
When the water level in the ground has reduced dramatically, it becomes dry. Thus any molecule of water spilled on the ground wouls be absorbed at a fast rate, which is due to the low percentage of water content in the ground. An example is the rate of absorbtion of water by a ground located in a desert.
Maybe the picture helps. The blue block represents the cart with a mass of 3 kg. The person(black block) is pulling the cart to the right with a force F so that the acceleration a is 2 m/s². According to Newton's 2nd law: F = m*a.
The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.
