# Conservation of Momentum

The conservation of momentum is a fundamental principle in physics that underscores the persistence of a system's total momentum in the absence of external forces. According to this principle, the sum of momenta before and after a collision or interaction remains constant, emphasizing the inherent stability of momentum within isolated systems. Widely applicable in various fields, from particle physics to everyday mechanics, the conservation of momentum serves as a crucial tool for understanding and predicting the dynamic behavior of objects in motion.

Questions

- A ball with a mass of #4 kg# moving at #3 m/s# hits a still ball with a mass of #5 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #3 kg# moving at #7 m/s# hits a still ball with a mass of #10 kg#. If the first ball stops moving, how fast is the second ball moving?
- An astronaut with a mass of #75 kg# is floating in space. If the astronaut throws a #5 kg# object at a speed of #8 m/s#, how much will his speed change by?
- An astronaut with a mass of #85 kg# is floating in space. If the astronaut throws a #5 kg# object at a speed of #2/3 m/s#, how much will his speed change by?
- A ball with a mass of #9 kg# moving at #14 m/s# hits a still ball with a mass of #18 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #13 kg# moving at #7 m/s# hits a still ball with a mass of #15 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #1 kg# moving at #8 m/s# hits a still ball with a mass of #7 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #12# #kg# moving at #8# #ms^-1# hits a still ball with a mass of #20# #kg#. If the first ball stops moving, how fast is the second ball moving? How much kinetic energy was lost as heat in the collision?
- An astronaut with a mass of #80 kg# is floating in space. If the astronaut throws an object with a mass of #7 kg# at a speed of #3/8 m/s#, how much will his speed change by?
- A ball with a mass of #7 kg# moving at #7 m/s# hits a still ball with a mass of #8 kg#. If the first ball stops moving, how fast is the second ball moving?
- An astronaut with a mass of #95 kg# is floating in space. If the astronaut throws an object with a mass of #4 kg# at a speed of #1/8 m/s#, how much will his speed change by?
- A ball with a mass of #17 kg# moving at #9 m/s# hits a still ball with a mass of #21 kg#. If the first ball stops moving, how fast is the second ball moving? How much kinetic energy was lost as heat in the collision?
- A fly splats on your windshield. What is the collision type?
- What is the law of conservation of momentum?
- A ball with a mass of #2 kg# moving at #16 m/s# hits a still ball with a mass of #21 kg#. If the first ball stops moving, how fast is the second ball moving? How much kinetic energy was lost as heat in the collision?
- A ball with a mass of #9 kg# moving at #7 m/s# hits a still ball with a mass of #15 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #6 kg# moving at #8 ms^-1# hits a still ball with a mass of #4 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #5 kg# moving at #3 m/s# hits a still ball with a mass of #16 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #6 kg# moving at #7 m/s# hits a still ball with a mass of #12 kg#. If the first ball stops moving, how fast is the second ball moving?
- A ball with a mass of #2kg# moving at #1 m/s# hits a still ball with a mass of #6 kg#. If the first ball stops moving, how fast is the second ball moving?