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23 Nov 2019

King Arthur's knights use a catapult to launch a rock from theirvantage point on top of the castle wall, 10 m above the moat. Therock is launched at a speed of 23 m/s and an angle of 38^ above thehorizontal.

How far from the castle wall does the launched rock hit the ground?

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Jarrod Robel
Jarrod RobelLv2
24 Feb 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

An attacker at the base of a castle wall 3.65 m high throws a rock straight up with a speed 7.40 m/s from a height of 1.55 m above the ground. (a)Will the rock reach the top of the wall? (b)If so, what is its speed at the top? If not, what initial speed must it have to reach the top? (c)Find the change of speed of a rock thrown straight down from the top of the wall at an initial speed of 7.40 m/s and moving between the same two points. (d)Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? (e)Explain physically why it does or does not agree.

An attacker at the base of a castle wall 3.65 m high throws a rock straight up with a speed 7.40 m/s from a height of 1.55 m above the ground. (a)Will the rock reach the top of the wall? (b)If so, what is its speed at the top? If not, what initial speed must it have to reach the top? (c)Find the change of speed of a rock thrown straight down from the top of the wall at an initial speed of 7.40 m/s and moving between the same two points. (d)Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? (e)Explain physically why it does or does not agree.

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