Can momentum be lost to friction?
Nope. The momentum lost from an object due to friction is momentum gained by the thing the object is rubbing against.
How do you know if linear momentum is conserved?
The law of conservation of momentum says that the momentum of a closed system is constant in time (conserved). A closed (or isolated) system is defined to be one for which the mass remains constant, and the net external force is zero. The total momentum of a system is conserved only when the system is closed.
What does it mean when linear momentum is conserved?
Conservation of linear momentum, general law of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant.
Is linear momentum conserved in a pendulum?
If there is no friction and the max height stays constant, then total energy is conserved. Momentum of the pendulum is not conserved, because it is constantly changing during the flight of the pendulum. As you noted, gravity is acting on it.
Is kinetic energy conserved in the collision between the ball and the ballistic pendulum?
The ballistic pendulum is a device in which a projectile such as a bullet is fired into a suspended heavy wooden stationary block. Some kinetic energy gets transformed into heat and sound, and some is used to deform the block. However, momentum is conserved.
What type of collision is studied in ballistic pendulum experiment?
Something as simple as a wooden block can be used to measure the muzzle velocity of a bullet. Known as ballistic pendulums, these devices have been used for decades in labs and classrooms to help investigate the conservation of energy and momentum.
How do you find the momentum of a pendulum?
1. From momentum conservation, the speed V of the ball and pendulum just after they collide is given by: ● V = mu/(M+m) ● where u = X * sqrt (g/2Y).
When a pendulum swings at which point is kinetic energy highest?
An active pendulum has the most kinetic energy at the lowest point of its swing when the weight is moving fastest. An ideal pendulum system always contains a stable amount of mechanical energy, that is, the total of kinetic plus potential energy.
Why is momentum conserved?
The conservation of momentum is simply a statement of Newton’s third law of motion. During a collision the forces on the colliding bodies are always equal and opposite at each instant. These forces cannot be anything but equal and opposite at each instant during collision. Therefore the momentum is always conserved.
What happens to the total energy of the pendulum as it swings?
In a simple pendulum with no friction, mechanical energy is conserved. Total mechanical energy is a combination of kinetic energy and gravitational potential energy. As the pendulum swings back and forth, there is a constant exchange between kinetic energy and gravitational potential energy.
At what position pendulum acquires the maximum energy?
A pendulum has its maximum kinetic energy when it is at the lowest point of its swing. This is the point where the speed of the pendulum is at its maximum.
Why do shorter pendulums swing faster?
Why does the angle the pendulum starts at not affect the period? (Answer: Because pendulums that start at a bigger angle have longer to speed up, so they travel faster than pendulums that start at a small angle.)
Does pendulum period depend on mass?
The period of a pendulum does not depend on the mass of the ball, but only on the length of the string. Two pendula with different masses but the same length will have the same period. Two pendula with different lengths will different periods; the pendulum with the longer string will have the longer period.
Does mass affect frequency of a pendulum?
Longer pendulums swing with a lower frequency than shorter pendulums, and thus have a longer period. Mass of the bob at the end of the pendulum-Changing the mass of the pendulum bob does not affect the frequency of the pendulum. Force of gravity-This accelerates the pendulum down.
What happens to period if mass is doubled?
Thus, if the mass is doubled, the period increases by a factor of √2.