Apowerful motorcycle can accelerate from rest to 26.8 m/s (60 mi/h) in only 3.90 s. (a) what is its average acceleration in m/s^2? m/s^2 (b) how far does it travel in that time? m

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.