# Falling objects

1. Mar 27, 2015

### ilori

If two objects of the same mass are dropped from different heights will they reach the ground at the same time

2. Mar 27, 2015

### jbriggs444

What do you think?

3. Mar 27, 2015

### ilori

They wont touch the ground at the same time

4. Mar 27, 2015

### jbriggs444

Can you elaborate on your reasoning -- does one or the other have a greater acceleration?

5. Mar 27, 2015

### ilori

The object at greater height will have a greater velocity but since it has a greater distance to cover it will take more time to touch the ground.

6. Mar 27, 2015

### jbriggs444

*SMACK HEAD*. You said different heights rather than the classic different masses.

Yes, you are right. The higher one takes longer to fall.

7. Mar 27, 2015

### ilori

yes, that's correct

8. Mar 27, 2015

### mathman

The acceleration is the same (assuming that the starting heights are not significant compared to the earth radius) and constant for both. This means that at any given time (ignoring air resistance) both objects are going at the same speed, so that the object starting higher can never catch up.

If they are starting from a very great height, the higher object starts out with a lower acceleration.