Context: Vijay gives two friends a ride in his wagon. One friend sits in the wagon at a time.
Vijay starts to pull the wagon across the yard. To move the wagon at the same speed each time, which friend does Vijay need to pull with a larger force?
A. a friend who weighs 21 pounds
B. a friend who weighs 28 pounds
Pick the correct answer from the listed options and provide the letter of the selected option.
Answer: B