Suppose galileo dropped a lead ball (100 kilograms) and a glass ball (1 kilogram) from the leaning tower of pisa. which one hit the ground first? (assume that there is no air resistance.)

Both balls hit the ground at the same time.

Explanation:

Mass of lead ball=100 Kg

Mass of glass ball=1 kg

When Galileo dropped a lead ball  and  a glass ball from the learning tower of Pisa.

There is no air resistance.When Both ball from the learning tower of Pisa fall under the gravity effect.

The gravity effect for all bodies on the earth remains same .It does not vary with the mass.

Therefore, both ball hit the ground at the same time.