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Homework Help: Projectile motion

  1. Oct 20, 2005 #1
    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. jcsd
  3. Oct 20, 2005 #2
    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..:rolleyes: :frown:
  4. Oct 20, 2005 #3


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    Homework Helper

    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.
  5. Oct 20, 2005 #4
    Average speed= Distance / time is incorrect???
  6. Oct 20, 2005 #5


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    It is correct, but it's not particularly helpful when the object is accelerating.
  7. Oct 20, 2005 #6
    Oh, right. I see your problem.

    I'll try to be more specific if replying to someone, sorry.
  8. Oct 20, 2005 #7


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