A cartoon squirrel is standing on a tree branch above the ground. He throws an extra large. 2.50 kg acorn straight up in the air with an initial speed of 3.70 m/s. a. How high above the tree branch does the acorn travel? b. What is the acorn's velocity 2.10 s after it was tossed? c. If the acorn is located 1.57 m above the ground 2.10 s after the acorn was tossed, what is the height of the tree branch that the squirrel is standing on?