Question

What is the equivalent unit to a newton?​

Answer 1

My science teacher said that there is no equivalent unit to a newton

Answer 2

There is no single equivalent unit. Nobody needs two different units that both mean exactly the same thing.

1 Newton is the amount of force that accelerates 1 kilogram of mass at the rate of 1 meter per second per second.

So its equivalent unit is (kg-m/sec^2) .