A horse of weight 6000N gallops at a speed of 16 m/s. Taking the acceleration of free fall
as 10m/s2, calculate the kinetic energy of the horse. (Give your answer in kJ.)

Answer:

6) 76.8 kJ

Weight = mass x g
Horse’s mass = 6000/10 = 600 kg
Kinetic energy = ½mv² = (0.5 x 600 x 16²) = 300 x 256 = 76800 J = 76.8 kJ