Answer. Answer: The momentum of a parked car is zero, because only objects that are in motion can have momentum.

What would be the momentum of a car if it is at rest?

The momentum of any object that is at rest is 0. Objects at rest do not have momentum – they do not have any “mass in motion.” Both variables – mass and velocity – are important in comparing the momentum of two objects.

What is the momentum of a parked car quizlet?

Momentum is a characteristic of the moving object that depends on its mass and its velocity. 2B) What is the momentum of a parked car? The momentum is zero.

Do object at rest have momentum?

Misconception Alert: Relativistic Mass and Momentum However, note that m is the mass of the object as measured by a person at rest relative to the object. Whenever the net external force on a system is zero, relativistic momentum is conserved, just as is the case for classical momentum.

What happens when two objects with the same momentum collide?

When two objects collide the total momentum before the collision is equal to the total momentum after the collision (in the absence of external forces). This is the law of conservation of momentum.

What happens to energy when two objects collide?

When objects collide, energy can be transferred from one object to another, thereby changing their motion. In such collisions, some energy is typically also transferred to the surrounding air; as a result, the air gets heated and sound is produced. Light also transfers energy from place to place.

What is it called when two things collide?

Some common synonyms of collision are concussion, impact, and shock. While all these words mean “a forceful, even violent contact between two or more things,” collision implies the coming together of two or more things with such force that both or all are damaged or their progress is severely impeded.

Is the speed of light?

The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.

99.99 percent

Would you go back in time if you went faster than light?

Time Travel Special relativity states that nothing can go faster than the speed of light. If something were to exceed this limit, it would move backward in time, according to the theory.

What happens to time at the speed of light?

This case is sometimes called special relativistic time dilation. The faster the relative velocity, the greater the time dilation between one another, with time slowing to a stop as one approaches the speed of light (299,792,458 m/s).

Do astronauts age slower?

And for astronauts on the International Space Station, that means they get to age just a tiny bit slower than people on Earth. That’s because of time-dilation effects. That’s why time passes slower for objects closer to the center of the Earth where the gravity is stronger.