# Projectile motion

1. Oct 20, 2005

### actingjsg

i have a few questions that i need help with. thanks! =)

A diver dives from the edge of a swimming pool and lands in the pool 5.7 m away 0.82 seconds later. With what speed did the diver dive? at what angle? assume the diver lands at the same height he started from.

A 2m tall basketball player shoots a ball at an angle of 51 degrees from horizontal. He released the ball even with the top of his head. It passes through the rim (3.05 m above the floor) 1.1 seconds later. How far was the player from the basket?

A baseball is hit at 30 m/s at an angle of 53 degrees. At the instand the ball was hit, an outfielder runs towards the infield at a constant velocity of 4.0 m/s and catches the ball at the same height from which it was hit. How far was the outfielder initially from the batter?

Can someone explain how to do this/what the answer would be?

2. Oct 20, 2005

### whozum

Thats actually incorrect. From looking at your other thread, your understanding of physics isnt really one which gives you a position to be helping people..

3. Oct 20, 2005

### Diane_

actingjsg - Can you tell us what you've tried already?

Edit: Oh, wait. I already said that. I take it you posted this elsewhere as well, and it was moved here? Well, now I feel like a doofus. Please pick one of the threads and let us know where you are.

4. Oct 20, 2005

### MooMansun

Average speed= Distance / time is incorrect???

5. Oct 20, 2005

### Diane_

It is correct, but it's not particularly helpful when the object is accelerating.

6. Oct 20, 2005

### MooMansun

Oh, right. I see your problem.

I'll try to be more specific if replying to someone, sorry.

7. Oct 20, 2005

### Gokul43201

Staff Emeritus
The number given is not even the total distance traversed; it is the total displacement.