This topic is in the 'Momentum and Impulse' section. Momentum and impulse come in very handy when you think about collisions. Example collisions are like a long jumper landing in sand, a fly hitting a windshield, or a tennis ball hitting a racquet. Momentum measures the colliding power of an object by combining mass and velocity, while Impulse captures the same idea by combining the force and time duration of a collision. In this section you'll see tutorials focused on momentum and impulse separately, as well as tutorials that combine these ideas together!