A book slides off a horizontal tabletop. As it leaves the table’s edge, the book has a horizontal velocity of magnitude v₀. The book strikes the floor in time t. If the initial velocity of the book is doubled to 2v₀, what happens to

(a) The time the book is in the air,

(b) The horizontal distance the book travels while it is in the air, and

(c) The speed of the book just before it reaches the floor? In particular, does each of these quantities stay the same, double, or change in another way? Explain.