A cannonball was fired horizontally 83.8 m at a speed of 5.0 M/S. How high was the canon?
回答 (3)
2017-12-14 11:11 am
✔ 最佳答案
(83.8/5) = 16.76 secs.Height of cannon = 1/2 (t^2 x g) = 1,361.65 metres.
2017-12-14 9:33 am
Poorly worded. I assume it hits the ground after that 83.8 meters ?
it takes how long to travel that distance? 83.8 m / 5 m/s = 16.7 s
how high would a rock be if it took that long to hit the ground when dropped?
h = ½gt²
h = ½9.8•16.7² = 1376 meters
PS, it's cannon, and m/s
it takes how long to travel that distance? 83.8 m / 5 m/s = 16.7 s
how high would a rock be if it took that long to hit the ground when dropped?
h = ½gt²
h = ½9.8•16.7² = 1376 meters
PS, it's cannon, and m/s
2017-12-14 9:20 am
I wished I could be high
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