Select the correct answer:
1. An iron sphere of mass \(5\) \(kg\) has the same diameter as an aluminium sphere of mass is \(3.5\) \(kg\).
Both spheres are dropped simultaneously from a tower. When they are lo m above the ground, they have the same.
Both spheres are dropped simultaneously from a tower. When they are lo m above the ground, they have the same.
2. The work done on an object does not depend upon the __________.