Colton starts to pull the wagon across the yard. To move the wagon at the same speed each time, which friend does Colton need to pull with a larger force?

 - a friend who weighs 27 pounds
 - a friend who weighs 32 pounds
Look for the friend who is heavier.
A friend who weighs 32 pounds is heavier than a friend who weighs 27 pounds. So, to move the wagon at the same speed each time, Colton needs to use a larger force to start moving the wagon with a friend who weighs 32 pounds.