Which equation would best help solve the following problem?

Tania releases a javelin 1.2 meters above the ground with an initial vertical velocity of 20 meters per second. How long will it take the javelin to hit the ground?

A.

–4.9t2 + 20t = 1.2

B.

–4.9t2 + 20t + 1.2 = 0

C.

–16t2 + 20t + 1.2 = 0

D.

–4.9t2+ 1.2t + 20 = 0

B? @Dscdago

Question

Which equation would best help solve the following problem?

 

Tania releases a javelin 1.2 meters above the ground with an initial vertical velocity of 20 meters per second.  How long will it take the javelin to hit the ground? 
 
 
 

 
 

  

  A. 
 
–4.9t2 + 20t = 1.2
   
   

 
 

  

  B. 
 
–4.9t2 + 20t + 1.2 = 0
   
   

 
 

  

  C. 
 
–16t2 + 20t + 1.2 = 0
   
   

 
 

  

  D. 
 
–4.9t2+ 1.2t + 20 = 0
 
B? @Dscdago

anonymous · Answer

@IMStuck I was just gonna tag you but you're viewing already haah

imstuck · Answer

It is B, just like you said.  Good!