Ahorizontal line on a distance-time graph means the object is
a. moving at a constant speed.
b. moving faster.
c. slowing down.
d. at rest.

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.