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 1.60 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? 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. 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? OYes Ο ΝΟ (e) Explain physically why it does or does not agree.

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 1.60 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? 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. 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? OYes Ο ΝΟ (e) Explain physically why it does or does not agree.