A rock is thrown straight down from a cliff at a velocity of 3.7 m/s and hits the ground below after 1.8 seconds. What was the velocity of the rock just before hitting the ground?

Q: A train travels a distance of 300 m at a constant acceleration. If it starts from rest, what is its…

A: Given: The distance covered is 300 m. The time duration is 20 s.

Q: A person is jogging around the track at 3.5 m/s. for the last 10 seconds the jogger accelerates at…

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Q: If a seagull drops a shell from rest at a height of 14 m, how fast is the shell moving when it hits…

A: Seagull drops a shell from rest ,  means initial velocity ( u ) = 0 Drops from height ( h ) = 14 m…

Q: A projectile is fired straight up in the air and is traveling at the the first same speed for the…

A: Speed of projectile is same for first 19 second.  t1=19 sec  3 sec after fired, distance traveled =…

Q: An object travels 16 m in 4 s and then another 16 m in 2 s. What is the average speed of the object?

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Q: The graph below shows the velocity of an object over time. 10 -2 -6 -8 -10 Time (s) What is the…

A: Let a denote the average acceleration, vf and vi denote the final and initial velocity, tf and ti…

Q: How fast is a dropped object moving after it falls for 4 s?

A: Given data:  Initial velocity (u) = 0 m/s Time (t) = 4 s  Required: Final velocity (v)

Q: At 3 s the position was 3 meters. At 4 s the position as 5 meters. What is the average velocity?

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Q: A stone is dropped from the top of a building and hits the ground after 3 sec. What is the height of…

A: Given data: Initial velocity (v0) = 0 m/s Time taken (t) = 3 s Required:  The height of the building…

Q: What is the speed of an object that travels a distance of 100 m in 35 s

A: given  distance d = 100 m time t = 35 s

Q: A gazelle runs off of a cliff with a velocity of 9 m/s. It hits the water 4.5 m away from the cliff.…

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Q: A car traveling north with a velocity of 20 m/s slows down to 10 m/s in 10s. What is the car’s…

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Q: Jane starts from her house to take a stroll in her neighborhood.After walking for 2 hours at a…

A: Given: distance, d= 4 miles  time, t = 2 hr

Q: A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an average rate…

A: Given: The acceleration of the bullet is a=6.20X105 m/s2. The time taken is t=8.10X10-4 s. The…

Q: If an object is thrown straight up and reaches a height of 20 m, what was the initial speed of the…

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Q: A golf ball is thrown downward at a speed of 10 m/s. If its velocity just before it hits the ground…

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Q: An object was dropped from the rooftop of a building and hit the ground 7 seconds. How high is the…

A: Given:Initial speed u = 0 m/s( free fall)Time t = 7 seca=g= 9.8m/ s2Height h = ?

Q: A car moving at 20 m/s takes 2 seconds to completely stop. How far does the car travel before…

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Q: If a rocket with an initial velocity of 600 m/s Accelerates at 20 m/s2  for one minute, what will…

A: An initial velocity of the rocket,Acceleration of the rocket,Time taken

Q: A book slides off a horizontal tabletop with a constant speed of 2.25m/s. It strikes the floor in…

A: Given Data:- Initial horizontal velocity of the book is vix=2.25 m/s The book strikes the floor…

Q: A hang glider dropped his cell phone from a height of 350 feet. How many seconds did it take for the…

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Q: A cyclist increased her velocity from ______ m/s to 28 m/s in 3.5 seconds. If the average…

A: This question is based on motion in one dimension.

Q: If you throw a rock straight down with a speed of 12.2 m/s off a cliff and it lands 8.55 seconds…

A: It is given that, u=12.2 m/st=8.55 sa=-g=-9.8 m/s2

Q: An object is dropped from rest and impacts the ground with a velocity of 8.7 m/s. What height was it…

A: Given data: The initial velocity of the object (u) = 0 m/s Final velocity of the object when it…

Q: A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an average rate…

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Q: A car initially moves with a velocity 32.7 m/s. Driver hits brakes, and the car stops in 4.8 s.…

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Q: A student walks at a speed of 0.5 m/s and then begins to run 15 seconds later at a speed of 2.5 m/s.…

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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…

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Q: You get out of school and walk north for 20 minutes. You travel 1.6 km. What is your average…

A: time of travel = 20 min  Or time of travel = 20/60 hours                                = 1/3 hrs…

Q: A ball rolls off the top of a table 1.2 m high and lands on the floor at a horizontal distance of 2…

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Q: A shopping cart is pushed from rest and travels a distance of 11.5m in 4 minutes. What is the…

A: Given data Distance travelled, d=11.5 m Time of travel, t=4 min=4×60 sec

Q: A long distance runner has a speed of 4 meters per second during a race. How far does the runner…

A: Given: The speed is V = 4 m/s. The time is t = 20 minutes.

Q: a dog is running at 8.25m/s chasing a cat. the dog gives up and slows down to a stop in 3.1 seconds…

A: Given: A dog is running at u = 8.25 m/s finally the dog stop in t = 3.1 seconds final speed of the…

Q: What is the speed of a walking person in m/s if the person travels 1000 m in 20 minutes?

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Q: Dennis hiked for about 4 hours and reached the top of the mountain. He traveled 36 meters in total…

A: Given data: Time = 4 hours Distance travelled = 36 m Speed: The ratio of the distance travelled to…

Q: A hang glider dropped his cell phone from a height of 450 feet. How many seconds did it take for the…

A: Given data:  A hang glider dropped a cell phone  Height (h) = 450 ft Initial velocity (u) = 0…

Q: A ball is dropped from a window and hits the ground with a speed of 25 ft/s. How high above the…

A: Initial velocity of ball u = 0  Acceleration = g = 32 ft/s2  final speed v = 25 ft/s  Height h = ?

Q: Billy drops a watermelon from the top of a three-story building, 10 m above the sidewalk. How fast…

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Q: What is your average speed if you walk 2 kilometers in 20 minutes?

A: The expression for the average speed,

Q: A toy car runs off a table with an initial velocity of 3.1 m/s. The car lands 1.9 m from the edge of…

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Q: How long does it take for a ball thrown upward at a velocity of 15 cm to reach a velocity of 10-20…

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Q: An object is dropped from rest and impacts the ground with a velocity of 7.3 m/s. What height was it…

A: The object is dropped from the rest, hence initial velocity u=0 The object reached the ground…

Q: what is the velocity of an object that traveled a distance of 1000 m due south in 50 s?

A: There are two types of physical quantities- scalar quantities and vector quantities. The scalar…

Q: In 0.5 seconds, a projectile goes from 0 to 300 m/s. What is the acceleration of the projectile?

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Q: A ball is dropped from a bridge and strikes the water in 2.4 seconds. How fast is it moving when it…

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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 –