Question

please answer me this question fast please please. ​

Answer 1

Answer:36km/hrs

Explanation:

Answer 2

Answer:

Explanation:

i) KINETIC ENERGY = 1/2 m v^2

                              = 1/2 x 400 x 36 x 36

                              =  259200 N

ii) KINETIC ENERGY = 1/2 x 400 x 54 x 54

                                  = 583200 N

SO THE CHANGE IN KINETIC ENERGY IS =  583200 - 259200 = 324000 N

HENCE THE ANSWERS IS 324000 N