A cricket ball of mass 160g is bowled horizontally at a speed of 20m/s.
a. (i) Convert the mass of the ball into kilograms.
b. (ii) Calculate the kinetic energy of the ball in joules.
c. (iii) Express the value obtained in part (ii) in kilojoules (kJ).
d. (iv) Express the same energy in megajoules (MJ) using scientific notation.