Answer:
its B
Explanation:
It's B & A at the same time because A. a roller coaster uses brakes to slow down and stop. B is the most reasonable answer. Because all roller coasters go up and over a second time over the hill, but they also slow down. But go with B.
TELL ME IF I´M RITE
 
        
             
        
        
        
Answer:
B porque tiene energía n..
 
        
             
        
        
        
Answer: Use this F=Ma.
Explanation: So your answer will be 
F=1 Kg+9.8 ms-2
So the answer will be 
F=9.8N
How'd I do this?
I just used Newton's second law of motion.
I'll also put the derivation just in case. 
Applied force α (Not its alpha, proportionality symbol) change in momentum
Δp α p final- p initial
Δp α mv-mu (v=final velocity, u=initial velocity and p=v*m)
or then
F α m(v-u)/t
So, as we know v=final velocity & u= initial velocity and v-u/t =a.
So F α ma, we now remove the proportionality symbol so we'll add a proportionality constant to make the RHS & LHS equal.
So, F=<em>k</em>ma (where k is the proportionality constant)
<em>k</em> is 1 so you can ignore it.
So, our equation becomes F=ma
 
        
             
        
        
        
D - Most likely. Those who read the magazine can choose whether or not to return the survey.
        
             
        
        
        
Force 
Explanation:
so force is your answer see why b/c