# Falling Elevator - Projectiles

1. May 25, 2014

What would be seen if a ball were projected at an angle to the horizontal in a falling elevator? Would the path be parabolic as always? And why?

2. May 25, 2014

### Simon Bridge

Try working out the problem in an inertial frame, and then working out what happens from the POV of someone falling with the lift.

Or another way: you have heard of "free fall" right?
What happens to ball's thrown in free fall?

3. May 25, 2014

The path would be parabolic whether or not the reference frame was accelerated?

4. May 25, 2014

### ZapperZ

Staff Emeritus
Hint: The "vomit" airplane that astronauts practice in to simulate zero-g is an airplane in free-fall.

So think again, what do you think the path should look like?

Zz.

5. May 25, 2014

### Staff: Mentor

Imagine you released a ball from your hand while in that free falling elevator. What would happen?

6. May 25, 2014

From my reference frame the ball would be stationary.

7. May 25, 2014

### Staff: Mentor

Good! Now what happens if you gave it an initial velocity?

8. May 25, 2014

It would simply move in a straight line.

9. May 25, 2014

### Staff: Mentor

Yep.

10. May 25, 2014