# Which statement explains what would happen to an astronaut in space after the astronaut throws a rock?

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## Which statement explains what would happen to an astronaut in space after the astronaut throws a rock?

The astronaut would move in the opposite direction that the rock is moving to counter the rock’s momentum.

## What will happen if a moving cart hits a stationary cart with the same mass in an elastic collision?

In this scenario, momentum in conserved between the two objects. For a perfectly elastic collision, the final velocities of the carts will each be 1/2 the velocity of the initial velocity of the moving cart.

## What was the original speed of the 6 kg cart?

The original speed of the 6 kg cart was -5 m/s, or 5 m/s to the left. The original speed of the 6 kg cart can be calculated using the law of conservation of momentum. According to this law, the total momentum of a system before a collision is equal to the total momentum after the collision.

## Does the collision between the cart and brick follow the law of momentum conservation?

In the collision between the cart and the dropped brick, total system momentum is conserved. Before the collision, the momentum of the cart is 60 kg*cm/s and the momentum of the dropped brick is 0 kg*cm/s; the total system momentum is 60 kg*cm/s.

## What if you were in a spaceship and fired a cannonball?

If you were in a spaceship and fired a cannonball into frictionless space, how much force would have to be exerted on the ball to keep moving once it has left the spaceship? A: Absolutely none! Once the ball is sent out into space there is no drag to slow it down.

## What would happen if an astronaut took off his suit in space?

In the dark void of space, the oxygen that sustains us would become a serious problem. The oxygen starts expanding and rupturing your lungs, tearing them apart — and that would cause boiling and bubbling of your blood, which immediately will cause embolism and have a fatal impact on your body, de Mey said.

## What happens when a moving object collides with a stationary object of the same mass?

In a collision between two objects of identical mass, the acceleration values could be different. Total momentum is always conserved between any two objects involved in a collision. When a moving object collides with a stationary object of identical mass, the stationary object encounters the greater collision force.

## When two carts having the same mass and same speed collide and stick together they stop is momentum conserved?

Two objects that have equal masses head toward each other at equal speeds and then stick together. The two objects come to rest after sticking together, conserving momentum but not kinetic energy after they collide. Some of the energy of motion gets converted to thermal energy, or heat.

## What happens when a light cart has an elastic collision with a stationary heavier cart?

So if a light object collides with a much heavier stationary object, the light object rebounds with the opposite velocity to its initial velocity, while the heavier object remains at rest. If the moving cart is much heavier than the stationary cart, then v1f ≈ v1i, and v2f ≈ 2v1i.

## What is the momentum of a 35 kilogram cart moving at a speed of?

Using the formula for momentum (p = mv), we multiply the mass (m) of the cart, which is 35 kilograms, by its velocity (v), which is 1.2 meters/second. This yields a momentum (p) of 42 kilogram·meters/second.

## What is the speed of the 2 kg cart after 5 seconds?

The speed of the 2 kg cart after 5 seconds is 80.0 cm/s.

## How the average speed of the trolley is calculated?

Measure distance, d, between the two light gates. Set the computer to measure the time between the trolley passing through the light gates. Release the trolley and record the time, t. Calculate average speed ṽ = d / t • Repeat several times and calculate an average.

## Is there any relation between Newton’s third law and law of conservation of momentum?

For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed. The principle of conservation of momentum is a direct consequence of Newton’s third law of motion.

According to Newton’s third law, the forces on the two objects are equal in magnitude and opposite in reaction. Such forces cause one object to gain momentum and the other object to lose momentum such that total momentum of the system remains conserved in absence of any external force.

## How does the change in momentum of cart 1 compare to the change in momentum of cart 2?

The change in momentum for each cart must always be equal and opposite to the other. If one cart gains momentum, then the other cart must lose that amount of momentum!

## What happens to astronauts when they go to space?

Astronauts receive 10x the amount of radiation exposure as we do on Earth. Such high exposure can damage the immune system, causing astronauts to be susceptible to infection while in space. Long-term exposure can damage cells and DNA, leading to cataracts and cancers.

## What happens to astronauts after being in space?

Astronauts experience decreased muscle mass, strength, and endurance because moving around requires reduced work from the legs and back. As a result, the muscles can begin to weaken or atrophy.

## What would happen if you were thrown into space?

According to NASA’s bioastronautics data book, the vacuum of space would also pull air out of your lungs, causing you to suffocate within minutes. After an initial rush of air surged out, the vacuum would continue to pull gas and water vapor from your body through your airways.

## What happens to astronauts when they are in space?

Bones and muscles weaken In space, where gravity is very weak, posture can be maintained without standing on your legs, and there’s no need to use your legs to move about. Muscles weaken and bone mass decreases if you stay for a long time in space.