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physics: how to determine when two objects will meet?
The question is:
You drop a ball from a window located on an upper floor of a building. It strikes the ground with speed v.You now repeat the drop, but your friend down on the ground throws another ball upward at the same speed v, releasing her ball at the same moment that you drop yours from the window. At some location, the balls pass each other.
Is this location
(a) at the halfway point between window and ground
(b) above this point
(c) below this point?
My choice is (b) since the final velocity of Ball1 (dropped from window) is equal to the initial velocity of Ball2 (throw upwards) but the difference being that the ball is not being throw directly from the ground, but x distance above the ground, otherwise both balls would meet at the halfway point since Ball2 would just the same as watching Ball1 going in reverse.
But am I correct or is my idea of how this works completely wrong?
You drop a ball from a window located on an upper floor of a building. It strikes the ground with speed v.You now repeat the drop, but your friend down on the ground throws another ball upward at the same speed v, releasing her ball at the same moment that you drop yours from the window. At some location, the balls pass each other.
Is this location
(a) at the halfway point between window and ground
(b) above this point
(c) below this point?
My choice is (b) since the final velocity of Ball1 (dropped from window) is equal to the initial velocity of Ball2 (throw upwards) but the difference being that the ball is not being throw directly from the ground, but x distance above the ground, otherwise both balls would meet at the halfway point since Ball2 would just the same as watching Ball1 going in reverse.
But am I correct or is my idea of how this works completely wrong?
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