I realize that this is a very simple question but I need a dispute resolved. Please provide the simplest answer you can to the following question. I realize that friction and subtle things come into play in a question like this but please avoid it in your response. I am looking for the simplest answer possible. I am an 8th grade teacher and I need an answer like you would expect from and 8th grader or an 8th grade teacher. Thanks. If a truck and a bicycle have the same momentum, which one is harder to stop?