Answer:
b mate im pretty sure ig :) 
 
        
             
        
        
        
Explaination: equal in force, opposite in direction
 the statement is false
 
        
             
        
        
        
A light-year is a <u>distance</u>.
It's the distance that light travels through vacuum in one year.
The distance is 9.4607 x 10¹² kilometers in metric units, and 5.8786 x 10¹² miles 
in 'customary' units, and is normally written without a bunch of question marks.