Question

which of these is an example of newtons first law, inertia? pushing a wheelbarrow full of bricks, and the bricks slide back toward the handles pushing against a stationary wheelbarrow, and the wheelbarrow accelerates forward pushing a wagon to the top of a hill, and the wagon to the top of hill and the wagon accelerates down the hill without assistance pushing against a brick wall, and the brick wall does not move

Explanation:

Newton's First Law of Motion (Law of Inertia) states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. In the case of pushing a wheelbarrow full of bricks and the bricks sliding back toward the handles, the bricks tend to remain in their state of motion (or lack thereof) due to inertia. When the wheelbarrow is pushed forward, the bricks want to stay in their original position (relative to the ground initially), so they slide back relative to the moving wheelbarrow.

Answer:

pushing a wheelbarrow full of bricks, and the bricks slide back toward the handles