help with physic regents?

Question

i have this regent physic question that i did but can't seem to find the answer to check my answer if it is right or not. can somebody help me with the answer.

here is the link to the regents, i need the answer to check my work.
http://www.lewport.wnyric.org/mgagnon/pdf/NewtonsLawsPretest.pdf

thank you

Answer 1

1) A


2) C


3) D











7) C


8) A

9) B

10) A















14) B

15) A







18) A