Respuesta :
Newton’s first law states that “a body at rest will stay at rest, and a body in motion will stay in motion, unless it is acted upon by an external force” to explain this is because bob is lugging a lot of trash it is acting upon his body which is in motion and causing his body to slow down, thus the lagging of bob behind bill
Answer: Newton's second law is the answer.
Explanation: Bob is pulling the heavier load . He needs a greater force to move as fast as Bill