Forces and Motion (Paperback)

How can a car accelerate yet stay at the same speed? What force enables airplanes to fly? Why is it almost impossible to sink in the Dead Sea? This title looks at all the forces that operate in the world, from the simple pushes and pulls exerted by our muscles to the mysterious force of gravity. This book explains how forces such as momentum, friction and pressure affect our lives and presents the laws that describe how forces work.