Question

A maglev is a type of train that rides on a "cushion of magnetism." These trains can attain very high speeds because

A. friction is greatly reduced.
B. gravity is reduced on the track.
C. the magnetic field of the maglev train is stronger than the magnetic field of the track.
D. the magnetic field of the track is stronger than the magnetic field of the maglev train.

Answer 1

a. friction

Step-by-step explanation:

the train is suspended up in the air because of magnets, so the weels that would of been there would rubb up against the track causing friction. now all the train has to deal with is drag

Answer 2

A. friction is greatly reduced.

Step-by-step explanation:

Maglev train runs on the principle of repulsion force due to magnetic field

here we know that magnetic field will apply force on the train which helps to levitate train in air

This is why it runs forward due to other component of magnetic force and hence it can run with high speed in air with least friction as there is no two surfaces in contact with each other

So here we can say that

Train run with very high speed due to least value of friction between two surfaces which moves relative to each other

so correct answer is

A. friction is greatly reduced.