A 0.010 kg clay ball thrown right at 16 m/s hits a marble moving left at 8.0 m/s, and sticks to it. Both move left at 3.2 m/s after the collision. What is the mass of the marble?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

How will the system respond to a temperature increase?

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?