A rock is dropped and takes 0.56 seconds to hit the ground. What was the impact velocity (velocity just before it hits the ground) of the rock?

Q: If someone throws a ball into the air with 10m/s , what is the balls final velocity after .15…

A:

Q: A falling stone takes 0.31 s to travel past a window 2.2 m tall. From what height above the top of…

A: Newton's 2nd and 3rd equation of motion falling an object is defined as h=ut-12gt2v2=u2-2gh Here, h…

Q: A drone accelerates from rest to a speed of 300 m/s in 3 . How far the drone will go

A: Given initial velocity of drone = 0 m/s velocity of drone at time 3 s = final velocity = v = 300 m/s…

Q: A ball is kicked straight up into the air with an initial velocity of 30 meters/sec.  How much time…

A: Given data:  Initial velocity (u) = 30 m/s, straight up Required:  Time taken to hit the ground

Q: A heavy rock is dropped from rest at the top of a cliff and falls 100 m before hitting the ground.…

A: Using kinematics, the time taken can be obtained as

Q: A runner starts from rest and runs forward 24 meters in 2.8 seconds at a constant acceleration. How…

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Q: A ball is throwing straight up in the air takes 3.6 seconds to reach its maximum height. At what…

A: Using kinematics, v=u+at

Q: An acorn drops from a tree and takes 1.18 seconds to hit the ground. What height did it fall from?

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Q: To take off, a fighter jet accelerates at an average velocity of 8.44 m/s 1 and requires 2.9…

A:

Q: A Prius has a velocity of 90 mi/hr North. What time will it take to travel 270 mi North?

A: The time taken (t) to cover a distance (D) with a velocity(v) is given as, t = Dv Given, is the…

Q: A rock is dropped from rest and takes 0.79 seconds to hit the ground. What height was it dropped…

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Q: A construction site lift is rising with a velocity of 2.5 m/s when a bag of cement is released. If…

A: Given data, Taking this as a reference sytem, velocity of lift, v1 = 2.5m/s  height at the time of…

Q: A ball thrown directly upward from the top of a 75m high building reaches the ground after 4.2s.…

A: Given data The height of the building is given as s = 75 m. The time taken by the ball to reach the…

Q: A ball is dropped and accelerates at 6.4m/s/s (due to air resistance) toward the ground, and takes…

A: Given, acceleration=6.4m/s2 time=6.2s

Q: A car accelerates from rest to a speed of 33 m/s in 7.2 s. How far did the car go during this…

A: Given data: Initial velocity (v0) = 0 m/s Final velocity (v) = 33 m/s Time (t) = 7.2 s Required:…

Q: A ball is thrown, and its velocity at time t is v(t) = (−t + 5) meters per second. What is its…

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Q: A jeepney is moving west at 25m/s when the driver steps on the brakes and brings the jeep to a stop…

A:

Q: On a speed-time graph, what is the acceleration during the interval if the velocity changes from 250…

A: Acceleration is defined as the rate of change of velocity per unit time. a = ∆V/∆t On speed time…

Q: From the very top of the new One World Trade Center Tower in New York City, an object would take…

A: Time taken by object to hit ground is 10.4 Gravity is given as 9.8 m/s2 Height fall  h= ut-gt22 h =…

Q: A tennis ball is dropped from a roof 1.8 meters from the ground. How long does it take for the ball…

A: Given data:  Initial velocity (Vi) = 0 m/s Height (h) = 1.8 m Required: Time (t)

Q: A stone is released from a height of 180 m, reached the ground with the speed of 60m/s. How long did…

A: height of stone, s= 180 m final velocity of stone near ground, v=60 m/s let t be the time taken

Q: A car moving initially at 55 km/h[S] experiences an acceleration of 10 km/h/s[S] for 4.8 s. What is…

A: Given data: Initial velocity (V0) = 55 km/h [S] Acceleration (a) = 10 km/h/s [S] Time (t) = 4.8 s…

Q: What is the initial velocity of some one who accelerates at a rate of 3.6 m/s for 10 seconds and…

A: Given: The acceleration of the object is 3.6 m/s2. The time interval is 10 s. The final velocity of…

Q: A bullet is shot straight up with an initial speed of 180 m/s. How long is the bullet in the air and…

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Q: Over a distance of 225 meters, an automobile going initially at +5.0 m/s accelerates evenly at +0.50…

A:

Q: A rocket is launched from a height of 3 m with an initial velocity of 15 m/s. At what time will the…

A: Given, Initial height of the rocket, h = 3 m initial speed of the rocket, u = 15 m/s

Q: Wile E. Coyote is chasing the roadrunner and falls off a cliff. It takes Wile E Coyote 7 long…

A:

Q: A model rocket launches into the air, traveling 4.43 m in 0.525 s as its engines fire. During this…

A: Given data s=4.43 mt=0.525sec

Q: A man drives a car in a straight line south along a highway. He travels with a velocity of 112.6…

A: Let a man travels the distance “d” in the southward direction. The expression for the velocity is…

Q: A basketball is thrown across the court and covers a distance of 26 meters in only 4 seconds. What…

A:

Q: A runner in a marathon passes the 7-mile mark at 1 o'clock and the 21-mile mark at 3 o'clock. What…

A: A runner in a marathon passes the 7 mile mark at 1 0 clock.and21 mile mark at 3 o clock.total…

Q: A ball is thrown vertically upward with a speed of 4.9 m/s. What is the time of the flight?

A: As per guidelines, i am solving first part of question , Please post other question seperately.

Q: A ball is released from a crane, and hits the ground with a velocity of 17.8 m/s. How high up was…

A:

Q: In major league baseball, the pitcher’s mound is 60 feet from the batter. If a pitcher throws a 95…

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Q: A tennis ball is dropped from a roof 6.2 meters from the ground. How long does it take for the ball…

A:

Q: A ball is thrown up into the air with a speed of 22 m/s. How high does it go and how long is it in…

A: when the balls reached at the highest point final velocity=v =0. If a ball is thrown in air and if…

Q: On a speed-time graph, what is the acceleration during the interval if the velocity changes from 20…

A: Given,

Q: To take off, a fighter jet accelerates at an average velocity of 10.43 m/s 2 and requires 6.9…

A: Givens(s): Initially, it was at rest, therefore, u=0 Acceleration, a=10.43 m/s2. Time, t=6.9 s.…

Q: a ball is thrown straight down from at 12 m/s toward the ground from a height of 45 m how fast is…

A:

Q: A rocket accelerates at a rate of 20m/s  during launch. How long does it take the rocket to reach a…

A: initial velocity, u = 0  acceleration, a = 20 m/s2  final velocity, v = 400 m/s

Q: A ball is traveling at a speed of 14 m/s when it starts rolling up a 20° incline. How long does it…

A: Given data The velocity of the ball is u = 14 m/s. The inclination of the ramp is θ=20°. The…

Q: In a projectile motion, the time for the object to reach the maximum height is 5 seconds. What is…

A: The time of the object to reach the maximum height of the projectile motion is given as t=5 s

Q: An acorn drops from a tree and takes 1.45 seconds to hit the ground. What height did it fall from?

A: Given data: Initial velocity (Vi) = 0 m/s Time taken to hi the ground (t) = 1.45 s Required: Height…

Q: A jogger jogs around a circular track with a diameter of 375 m in 15 minutes. what was the joggers…

A: GivenDiameter of circular track d = 375mtime taken t = 15 minutes

Q: A football player has an initial speed of 8 m/s and is stopped by a defensive lineman in a time…

A: Given data: Initial speed of football player is, u=8 m/s. Time interval is, t=2.0 s.

Q: A ball is thrown upwards from the ground and it took 5 seconds to return back to the ground. How…

A: Time taken by ball to return back to ground = 5 seconds Let the initial velocity = u

Q: A family road trip starts out in a van travelling 50km at a velocity of 75km/ hr followed by a spot…

A: Here the van travelling 50km at a velocity of 75km/ hr followed by a spot of slow traffic where they…

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –