Question

Stuck in the middle of a frozen pond with only your physics book, you decide to put physics in action and throw the 6-kg book. If your mass is 54 kg and you throw the book at 14 m/s, how fast do you then slide across the ice? (Assume the absence of friction. Let the direction the ball is initially moving be the positive direction.)

Answer 1

Are you throwing a ball or a book?

Apply conservation of momentum.