Respuesta :

Answer: 

u = 0  

v= 7m/s  

s=14m  

From the relation,  

v²=u²+2as  

47=0+2×a×14  

a= 2×14/27  

a=1.03703704  

time taken  

v=u+at  

7=0+1.03703704×t

 

t=6.74999764s

Hope it helps