Question

Two people on ice skates push against each other. The person on the left is 50kg, the person on the right is 60kg. If the person on the right ends up going 3 m/s, how fast is the other person going?

This is for 8th grade physics on Newton’s 3rd law so pls nothing too complex

Answer 1

I got -3.6 m/s but I had to do conservation of momentum for this question. Which involves Newtons third law but with simply that law I do not know how to complete this question. If you would like me to post my work I will though! Sorry