An object of mass 5kg falls from rest through a vertical distance of 20 m and reaches a velocity of 10 m/s. How much work is done by the push of the air on the object ? (g = 10 m//s^(2))

An object of mass 5kg falls from rest through a vertical distance of 2

1.	An object of mass 5kg falls from rest through a vertical distance of 20 m and reaches a velocity of 10 m/s. How much work is done by the push of the air on the object ? (g = 10 m//s^(2))
Answer» ANSWER :`-750` J