An object of mass 4 kg falls from rest through a vertical distance of 20 m and reaches with velocity of 10 `(m)//(s)` on ground. How much work is done by air friction?

An object of mass 5 kg 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=10m//s^(2)).

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

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

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

An object of mass 5kg falls from rest through a verticle distance of 20m and reaches a velocity of 10ms^-1 . How much work is done by the push of the air on the object? (g = 10 ms^2)

An object of mass 10 kg falls from rest through a vertical distance of 10 m and acquires a velocity of 10 ms^(-1) . The work done by the push of air on the object is (g = 10 ms^(-2) )

An object of mass 10 kg falls from rest through a vertical distance of 10 m and acquires a velocity of 10 ms^(-1) . The work done by the push of air on the object is (g = 10 ms^(-2) )