A6 kg object has a speed of 20 m/s. what is its kinetic energy

Kinetic energy = m x v^2
                           
                               2
 
                        =        6 x (20)^2
                               
                                       2
 
                         =           1200 J.

Hope this helps!

Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.