Physics Middle School

PLEASE ANSWER You are in a vehicle waiting at a railroad crossing and notice a train going by at a constant speed of 5 kph. You happen to notice that there’s no engineer driving the train and it seems to be on auto pilot. Down the track in the direction the train is traveling, you see a Humane Society van full of cute puppies and kittens stalled out on the tracks. Are the van’s passengers in trouble or not? Use Newton’s 2nd Law to explain.

Answers

Answer 1
Newton’s second law is which simply states that the rate of change of momentum of a body over time is directly proportional to the force applied. An example is baseball. If you hit the ball with small force it won’t go far or fly in the air fast rather slowly glide through the air and probably touch the ground in 5 seconds. Based on that this question isn’t able to use the 2nd law. A train with no driver to stop it that weighs tons more than a van with puppies in it will destroy and plow through the van no matter what. It doesn’t matter the speed nor how far away it is. They are in danger due to the fact there is no driver to stop the train and there is a big mass difference between the two transportation devices.

Related Questions

What is the formula to calculate the GPE of an object?

Answers

Answer:

mass x gravity x height

Explanation:

Gravitational potential energy is measured in jules

The formula is U=mgh. With U being gravitational energy, M is mass, g is gravitational field, h is height.

Do allergen-free pillows cause fewer germs to grow?
Why do you think this experiment fits in the category of life science?

Answers

No it doesn’t cause fewer germs to grow. it fits because it can be tested and experimented on, you can revive different results depending on your environment and what you did prior to laying on your pillow. There are many factors that can play a role.
No it doesn’t cause fewer germs to grow

True or False

A penalty kick is awarded if any defensive player (other than the goalie) touches the ball inside the penalty area

Answers

Answer:

T?

Explanation:

A penalty kick is a direct free kick awarded to the attacking team when the defensive team commits a foul in the penalty area. It is taken from the penalty spot and all players except the goalkeeper and the player taking the kick must stand outside the penalty area, at least 10 yards from the penalty spot.

True I think I could be wrong tho

The magnetic field produced by a bar magnet can be made visible using iron filings, which align to the magnetic field, as shown in the image above.



How does the magnetic field in the image compare to Earth's magnetic field?



a.The bar magnet has two poles at W and Y, and the magnetic field produced by Earth also has two poles and looks similar to the bar magnet.

b.The bar magnet has two poles at W and Y, but the magnetic field produced by Earth has three poles and looks different from the bar magnet.

c.The bar magnet has three poles at W, X, and Y, and the magnetic field produced by Earth also has three poles and looks similar to the bar magnet.

d.The bar magnet has three poles at W, X, and Y, but the magnetic field produced by Earth has two poles and looks different from the bar magnet.

Answers

Answer:

c

Explanation:

Answer:

C

Explanation:

HEEEEELP PPPPPLLLLLZZZZZ

Answers

i think z because water is a bunch of free moving particles which are weightless to gravity.
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