Question

LOOK AT THE PICTURES 2!

Answer 1

E = 0.5mv^2 = 0.5*44*10^2 = 2200J

Answer 2

The formula for kinetic energy is ...

                       K.E.  =  (1/2) (mass) (speed²) .

For the object in this question ...

                      K.E. = (1/2) (44 kg) (10 m/s)²

                              =        (22 kg) (100 m²/s²)

                              =         2,200  kg-m²/s²

                              =         2,200  Joules  . 

(That's the fourth choice on the list.)