Neglecting air resistance, the acceleration of the ball falling from the building will be _.
Two balls of mass 2 kg and 4 kg are dropped together from a 60 feet tall building. After a fall of 30 feet, the ratio of their kinetic energy will be___. Neglect air resistance in both the cases.
What is the acceleration produced in a freely falling body of mass 10 kg? (Neglect air resistance)