Answer :

dansi902
g = 9.8m/s ,
m = 2 kg
t = 2 seconds
u = 0
v = ?
v = u + gt
  = 0 + 9.8 *2 = 19.6 m/s
K.E.=?
K.E.= [tex] \frac{1}{2} mv^2[/tex]
       = [tex] \frac{1}{2} * 2 *(19.6 )^2[/tex]
       = 384.16 J 


prekshamehta
please see the attcahment.
View image prekshamehta

Other Questions