An attacker at the base of a castle wall 3.85 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 x (b) If so, what is its speed at the top? If not, what initial speed must it have to reach the top? 49 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 7.50 m/s and moving between the same two points. 992 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 D Yes No (e) Explain physically why it does or does not agree. Show Transcribed Text

Q: 11 The diatenee froma A 1he u to M ontroo1 ig ohout 225 mileg A+on QvONOS d of 65 mileg nOn ho n hou…

A:

Q: A train moves with uniform velocity of 36kmh." for 10s. Find the distance travelled by it.

A:

Q: A flower pot is thrown down at a 4.00m/s and hits the ground in 8.00s. From what height was it…

A: initial speed (u)=4 m/s  time to reach ground(t)=8 sec  acceleration due to gravity (g) =9.8m/s2 let…

Q: Can you show me the conversions for this question, of how you got 33.56 hours?

A: 31479714.567feets divided by , 1,088 feets per second is ,  31479714.567feets1,088 feets per second…

Q: object thrown vertically upward from the surface of a celestial body at a velocity of 48 m When does…

A:

Q: A ball is dropped off the top of a building and hits the ground 3.41 seconds later.  How far did it…

A: Known data: The time taken by the ball to hit the ground is t= 3.41 s The acceleration due to the…

Q: Johnny walks 70 km in 2.3 hours. Calculate Johnny's speed in km/h.

A: Given data: Distance (d) = 70 km Time (t) = 2.3 hours Required: Speed in km/h

Q: A van moves with an average speed of sav = 35 mi/hr. a) Express this speed in km/hr.  b)…

A: Average speed of a van = 35 mihr

Q: Calculate the speed of a dog running through a field if he is covering 25.5 meters in 45 second

A: distance covered (d) = 25.5 meters time taken (t) = 45 seconds

Q: speed of an object averaged over a given period of time is know as?

A: Speed is nothing but the magnitude of velocity and it is a scalar quantity.

Q: If a marathon runner averages 7.2 mi/h, how long does it take him or her to run a 26.22-mi marathor

A: This is a simple problem of uniform velocity motion, the time taken by the runner can be easily…

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.