Question

A football, a hockey puck, and a tennis ball all fall down in the absence of air resistance. Which of the following is true about their acceleration

Answer 1

Answer:

If there is no air so all the things are there in a condition of free fall .In such condition the gravity will attract all the things with same accelaration I.e 9.8 m/s.So all the objects will fall at the same time. Thus accelaration would be same irrespective of their masses.