a. An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground. Will the rock reach the top of the wall? If so, how fast is it moving when it reaches the top. If not, what initial speed must it have to reach the top?
b. To defend the castle, a rock is thrown downwards from the top of the wall with an initial speed of 7.40 m/s. What is this rock's speed as it passes the height of 1.55 m from the ground?
c. 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? Explain physically why it does or does not agree. Astronaut David Scott dropped a hammer and a feather at the same time on the Moon, from a height of 1.20 m and observed them hit the lunar soil at the same time. The surface gravity of the Moon gives a constant acceleration of 1.62 m/s squared
d. How long did it take for the objects to hit the surface of the Moon after their release?
e. What was the speed of the objects as they hit the surface of the Moon?
An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground.
a. An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground. Will the rock reach the top of the wall? If so, how fast is it moving when it reaches the top. If not, what initial speed must it have to reach the top? b. To defend the castle, a rock is thrown downwards from the top of the wall...
38.Q C An attacker at the base of a castle wall 3.65 m high throws a rock straight up with 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? (e) Find the change in speed of a rock thrown straight down from the top of...
An attacker at the base of a castle wall 3.70 m high throws a rock straight up with speed 7.50 m/s from a height of 1.60 m above the ground. Will the rock reach the top of the wall? If so, what is its speed at the top? If not, what initial speed must it have to reach the top? Find the change in speed of a rock thrown straight down from the top of the wall at an initial...
An attacker at the base of a castle wall 3.55 m high throws a rock straight up with speed 4.50 m/s from a height of 1.60 m above the ground. (a) Will the rock reach the top of the wall? Yes or 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...
An attacker at the base of a castle wall 3.66 m high throws a rock straight up with speed 8.50 m/s at a height of 1.53 m above the ground. A) What initial speed must it have to reach the top? B) Find the change in the speed of a rock thrown straight down from the top of the wall at an initial speed of 8.50 m/s and moving between the same two points. C) Does the change in speed...
An attacker at the base of a castle wall 3.70 m high throws a rock straight up with speed 7.50 m/s at a height of 1.51 m above the ground. (a) Will the rock reach the top of the wall? (b) If so, what is the rock's speed at the top? If not, what initial speed must the rock have to reach the top? (c) Find the change in the speed of a rock thrown straight down from the top...
wall 3.60 m high throws a rock straight up with speed 7.50 m/s from a height of 1.70 m above the ground. (a) Will the rock reach the top of the wall? Yes 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 ) Find the change in speed of a rock thrown straight down from the top of the wall at an initial speed of...
You discover a new microbe while working on a citizen scientist project. The mic in their correct phylogenic niche. In order to determine its evolutionary relatednes 2113 hw 1. launch and fall 45. A all is thrown vertically upward with a speed of 25.0 m/s.tal How high does it rise? (b) How long does it take to reach its highest point? (c) How long does the all take to hit the ground after it reaches its highest point? (d) What...
A rock takes 3.2 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.4 m/s. Calculate the height of the cliff (in meters). Using that information, how long would it take to reach the ground if the rock is thrown straight down with the same speed?
King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 47 m/s and an angle of 26°. A cannonball that was accidentally dropped hits the moat below in 1.06 s. A) How far from the castle wall does the cannonball hit the ground? B)What is the ball's maximum height above the ground?