The momentum of a pendulum at its lowest point is zero. This is because at the lowest point, the pendulum is at its maximum displacement, and therefore has no velocity. Momentum is calculated as mass times velocity, so with a velocity of zero, the momentum is also zero.
Yes, the mass of the pendulum does affect its momentum at the lowest point. The momentum of an object is directly proportional to its mass, meaning that a pendulum with a larger mass will have a greater momentum at its lowest point compared to a pendulum with a smaller mass.
The length of the pendulum does not affect its momentum at the lowest point. Momentum is not dependent on the length of an object, but rather on its mass and velocity. However, the length of the pendulum does affect the period of its swing, which can impact the momentum at different points in its swing.
Changes in the momentum of a pendulum at its lowest point can be caused by changes in its mass or velocity. Additionally, external forces such as air resistance or friction can also affect the momentum of a pendulum at its lowest point.
No, the momentum of a pendulum at its lowest point cannot be negative. Momentum is a vector quantity, meaning it has both magnitude and direction. At the lowest point of a pendulum's swing, the direction of its velocity is always in the positive direction, so the momentum must also be positive. A negative momentum would indicate a velocity in the opposite direction.