Directions: Please indicate how long each bar is in centimeters and millimeters.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

Roberto and laura are studying across from each other at a wide table. laura slides a 2.2 kg book toward roberto. if the net force acting on the book is 1.6 n to the right, what is the book acceleration

Now assume that tweedledum applies an upward force at the far left end of the board (fleft) and that tweedledee applies an upward force at the far right end of the board (fright). with what force does each person lift? recall that the weight of the board is w.