Question

A body of mass 2 kg thrown vertically upward from the ground with a velocity of $8 \, ms^{-1}$ reaches a maximum height of 3 in. The work done by the air resistance is_______ (Acceleration due to gravity = $10 \, ms^{-2}$)

• A. 4 J
• B. 60 J
• C. 64 J
• D. 8 J

Answer 1

Answer: (A)

4 J

Answer 2

Answer (a) 4 J