Did you know?
Did you know that in physics, the principle of conservation of momentum can be used to determine the common velocity of objects after a collision? For example, if a ball with a mass of 0.5kg is moving at 10m/s and collides with another ball of equal mass at rest, the common velocity of the two balls after the impact can be calculated. By applying the principle of conservation of momentum, which states that the total momentum before a collision is equal to the total momentum after the collision (assuming no external forces), we can find the common velocity. In this case, the initial momentum of the first ball is given by mass (0.5kg) multiplied by velocity (10m/s), which is equal to 5kg∙m/s. Since the second ball is at rest, its initial momentum is 0kg∙m/s. After the collision, the two balls move off together as one object with a combined mass of 0.5kg + 0.5kg = 1kg. Therefore, their common velocity can be calculated by dividing the initial total momentum (5kg∙m/s) by the final total mass (1kg), resulting in a common velocity of 5m/s.
