A snail was observed to cover 22 cm in 20 seconds and then another 21 cm in 30 seconds. What was the average speed of the snail?
A. 0.7cm/s

B. 0.86cm/s

C. 0.9cm/s

D. 1.1cm/s

Question

A snail was observed to cover 22 cm in 20 seconds and then another 21 cm in 30 seconds. What was the average speed of the snail?
  A. 0.7cm/s
 
 
   
   

 
 

  

  B. 0.86cm/s
 
 
   
   

 
 

  

  C. 0.9cm/s
 
 
   
   

 
 

  

  D. 1.1cm/s

anonymous · Answer

use S=VT
here S=distance coverd=22+21=43cm
V=velocity=?
T=time=20+30=50sec
so

S=VT
=>V=S/T=43/50=0.86cm/sec