An attacker at the base of a castle wall 3.55 m high throws a rock straight up with speed 8.30 m/s from a height of 1.65

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An Attacker At The Base Of A Castle Wall 3 55 M High Throws A Rock Straight Up With Speed 8 30 M S From A Height Of 1 65 1 (50.48 KiB) Viewed 28 times

An attacker at the base of a castle wall 3.55 m high throws a rock straight up with speed 8.30 m/s from a height of 1.65 m above the ground. (a) Will the rock reach the top of the wall? Ⓒ Yes O No (b) If so, what is its speed at the top? If not, what initial speed must it have to reach the top? 10.3 x Your response differs from the correct answer by more than 10%. Double check your calculations. m/s (c) Find the change in speed of a rock thrown straight down from the top of the wall at an initial speed of 8.30 m/s and moving between the same two points. 10.30 x Your response differs from the correct answer by more than 100%. m/s (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? O Yes No (e) Explain physically why it does or does not agree. the rock spends less time in the flight Read It Need Help?