This is the exact wording of the question...my teacher likes to give minimum info:
A cannon is fired horizontally off a cliff that is 65 m from the plain below. Its initial velocity is 75 m/s. Find the (A) time of trip, (B) horizontal distance traveled, and (C) final resultant velocity.
Then, it says....the initial velocity is decreased to 7.5 m/s. Which of the above numbers will not change with this decrease?
A
B
C
(as above)
2006-10-11 10:02:19 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
OK, with those details - A. The initial horizontal velocity doesn't affect how long it takes to fall vertically 65 m. You could just as well reach out and drop the ball. It's the same formula: y = (1/2)gt^2. The vertical motion and the horizontal motion can be analysed independently.
2006-10-11 10:38:38 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋
A) the time of the trip is constant in this case.
2006-10-11 17:05:01 · answer #2 · answered by Dr M 5 · 1⤊ 0⤋
distance traveled
2006-10-11 17:08:01 · answer #3 · answered by ♪♫jessy♫♪ 4 · 0⤊ 1⤋
i wont give the answer to your question. do your homework. btw thanks for the 2 points i get for answering this question hahaha.
2006-10-11 19:24:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋