Hi There,
  This is False.
Hope this helped!
        
                    
             
        
        
        
Answer:
10kg
Explanation:
Let PE=potential energy
PE=196J
g(gravitational force)=9.8m/s^2
h(change in height)=2m
m=?
PE=m*g*(change in h)
196=m*9.8*2
m=10kg
 
        
             
        
        
        
Answer:
C 
Explanation:
the image formed is real but inverted and magnified 
you can remember it by R I M 
hope this helps 
 
        
             
        
        
        
Answer:
d) The stone will have about 50 joules of kinetic energy and 0 joules of potential energy .
Explanation:
Given :
Initial Potential energy ,  .
 .
Initial Kinetic energy ,  . ( because ball is in rest )
 . ( because ball is in rest )
Now , we know , kinetic energy is maximum when an object reaches ground .
Also , potential energy is zero when an object is in ground .
We know , by conservation of energy :
Initial total energy = Final total energy

Therefore , option d) is correct .