Question

Suppose someone slides a 2kg physics book across the desk. At point A the book is sliding at 3m/s, and it encounters a constant 4N frictional force as it slides 1.5m across the desk to point B. What is the speed of the book at point B?

Will pay to who gets it right

Answer 1

Vf (final speed) = 4m/s to one sig dig (rounded up from 3.87...)