30 4 sin 0 cm s 15 Q 165 A body of mass 2 kg falls from a

Last updated: 6/14/2023

30 4 sin 0 cm s 15 Q 165 A body of mass 2 kg falls from a height 20 m If it reaches the ground with speed 10 m s then work done by air resistance is 1 300 J 3 200 J 2 100 J 4 400 J 3 30 cm 4 sin 0 cm s Q 165 2 kg a 1 af fer 1 300 J 3 200 J 20m af 10 m s fr 2 100 J 4 400 J