(III) A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.4 s later. If the speed of  sound is 340m/s, how high is the cliff?

Q: A runner decreases his velocity from 20 m/s to 10 m/s in 2.0 s. What is the average accelaration?

A: The expression for the average acceleration is aav=vf-viΔt

Q: If an object is thrown into the air with an initial upward velocity of 45.0 m/s, how fast will it be…

A:

Q: At the height 80 m, an aeroplane is moving with 150 m/s. A bomb is dropped from it so as to hit a…

A: Given information: The height of the aeroplanen (h) = 80 m The velocity of the aeroplane (vx) = 150…

Q: A stone is dropped from the roof of a very tall building. 1.50 s later, a second stone is thrown…

A:

Q: A rifle with a muzzle velocity of 450m/s shoots at a bullet at a target 50 m away . How high above…

A:

Q: An arrow is fired into the air and it reaches its highest point 3 seconds later.   How high did it…

A: The answer is below

Q: An automobile moving at a constant velocity of 15m/s passes a gasoline station.Two seconds…

A:

Q: A boat can move at a constant velocity of 1.3 m/s in still water. How long will it take for the boat…

A: Given in question: Distance(d) = 1850m                                  Velocity(v) = 1.3 m/s To…

Q: Vhat must be the acceleration of a train in order for it to stop from 8.0 m/s in a distance of 37 m?…

A: initial velocity = V0= 8 m/s final velocity = V = 0 ( Stop ) distance = S = 37 m acceleration = a =…

Q: Does the speedometerin your car measure average orinstantaneous velocity?

A:

Q: An object is thrown straight down from the top of a building 45.0 m tall building at 14.0 m/s, while…

A: Given data:  Height of building = 45.0 m/s Initial velocity of object at top (u1) = 14.0 m/s Initial…

Q: A ball is thrown vertically upwards at 2.8 m/s. For its complete trip (up and back down to the…

A:

Q: A rock is thrown from a bridge 21.5 m above water with an initial speed of 14 m/s.   Assuming…

A: Given data: The height above water is h=21.5 m. Initial speed is u=14 m/s.

Q: A body falls freely from rest in a vacuum from a height of 20m. What is the speed with which it…

A: Body is falling freely from rest in a vacuum means acceleration will be constant.

Q: 4. (III) A falling stone takes 0.15 seconds to t tall. From what approximate height above th

A:

Q: An antelope starting from rest reaches 24m/s in 8s.  How far does it go?

A: Given: The initial velocity of the antelope is 0 m/s. The final velocity of the antelope is 24 m/s.…

Q: With what velocity must a ball be thrown vertically upward in to order to rise to a height of 50ft?…

A: height = h = 50 ft = 15.24 m acceleration due to gravity g = 9.8 m/s2 final velocity = V = 0 m/s…

Q: Raindrops fall 1.67×103 m from a cloud to the ground. If they were not slowed by air resistance, how…

A:

Q: One of the fastest recorded pitches in major-league baseball, thrown by Tim Lin cecum in 2009, was…

A: Write the given values. v0x=101 mi/hv0y=0x=60.5 ft

Q: Which is greater, an acceleration from 25km/h to 30km/h or one from 96km/h to 100km/h if both occur…

A: The acceleration from 25km/h to 30km/h is greater than the acceleration from 96km/h to 100km/h since…

Q: A ball is thrown vertically upwards at 9.5 m/s. For its complete trip (up and back down to the…

A: When the ball completes the entire trip, its final position is the same as its initial position.…

Q: From her bedroom window a girl drops a water-filled balloon to the ground, 5.40 m below. If the…

A:

Q: What maximum height, in meters, will be reached by a stone thrown vertically straight upward if it…

A: Let us consider a stone is thrown vertically straight upward having initial speed (u) in…

Q: What distance will it cover in 10 s after

A: Given; Acceleration,a=4 m s-2time,t=10 sFind distance will it cover ?

Q: You jog at 9.1 km/h for 5.0 km, then you jump into a car anddrive an additional 13 km. With what…

A:

Q: a car, initally at rest, accelerates at 8.9 m/s for a total of 2.7s. How far did it go in this time?

A:

Q: an arrow is shot vertically upward with a speed of 34 m/s and 4 seconds later another arrow is shot…

A: Let us call the first arrow A and the second arrow B. The distance traveled by A in 4 sec is: The…

Q: From a hot air balloon at an elevation of 310 m, a stone is dropped. Two seconds later another stone…

A: Height (h) = 310 m Velocity (u) = 75 m/s

Q: A bullet is fired from a handgun straight up. The muzzle exit speed is 200 m/s. Assuming that the…

A: Let the upward direction is taken as positive. Velocity at the highest point of motion is…

Q: The cannon on a battleship can fire a shell a maximum distance of 32.0 km The initial velocity of…

A:

Q: Gulls are often observed dropping clams and other shellfish from a height to the rocks below, as a…

A:

Q: Gulls are often observed dropping clams and other shellfishfrom a height to the rocks below, as a…

A:

Q: A stone is dropped from the roof of a building. A second stone is dropped 1.41s later. How far apart…

A:

Q: A soccer player kicks a rock horizontally off a 40.0-m high cliff into a pool of water. If the…

A: Solution: Given that yi = 40 m yf = 0 when he kicks it horizontally vyi=0 tsound=3 s vsound=343 m/s…

Q: Can an automobile with a velocity toward the north simultaneously have an acceleration toward the…

A: it is not necessary that a body moving towards north with a particular velocity should have…

Q: The brakes of an automobile are suddenly applied at the instant when its velocity is 20 m/s. If the…

A:

Q: Assuming equal rates of acceleration in both cases, how much further would you travel if braking…

A:

Q: The bullet was ejected from a muzzle of the gun with a velocity of 270m/s and is directed vertically…

A: When a projectile reaches its maximum height that means it will fall down after that and during that…

Q: a ship being launched slides down the ways with a constant acceleration. she takes 4 seconds to…

A: Given data The time taken by the ship to slide first meter is t = 4 s. The distance traveled by the…

Q: A cyclist moving with a speed of 2.0 m/s pedals furiosly and accelerates at 1.2 m/s^2, covering a…

A: Given in question - initial speed(u) = 2.0 m/s                                   acceleration(a) =…

Q: At a fireworks display at a shopping mall, a shopper noticed that the sound of an exploding shell…

A: The speed of sound is v = 345 m/s.

Q: A stone is dropped from the top. It is seen to hit the ground below after 3.55 s. How high is the…

A:

Q: Let's say that during a thunderstorm you measure the time lag between the flash and the thunderclap…

A: Speed is defined as the distance covered by a moving object per unit time . i.e. Speed = Distance /…

Q: A hunter aims directly at a target (on the same level as the gun) 75m away. If the bullet leaves the…

A: When the bullet travels directly towards the target, then due to gravity the falls by some distance.…

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.