Physics Q - centripetal force

Practice Question Solving
1

A mass m=10³ kg executes a circular movement at constant speed V=10³ ms-1 and radius R=1 km. The centripetal force F necessary to do this is:

Choice 1 = 10N
Choice 2 = 100N
Choice 3 = 1000N
Choice 4 = 10000N

Hi

Answer is choice 4) 10000N
i keep finding 1000000N
Fc = m * ac = m * v²/r = 10³ * (10³)²/10³ = 10⁶N what is my mistake?

2

i keep finding the same answer, maybe the units were written wrong? as if it was supposed to be meters or grams. otherwise i couldn’t find it