Amtrak's 20th-Century Limited is en route from Chicago to New York at 120 km/h when the engineer spots a cow on the track. The train brakes to a halt in 1.5 min , stopping just in front of the cow. What is the magnitude of the train's acceleration?

Q: A speeder travelling at a constant velocity of 40 m/s passes by a police car that is initially at…

A: Given:  The  velocity of the speeder is v = 40 m/s  The police car is initially on the rest.  The…

Q: A tourist being chased by an angry bear is running in a straight line toward his car at a speed of…

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Q: 2. An astronaut left the International Space Station to test a new space scooter. Her partner…

A: Simple problem of Kinematics. Please have a good look

Q: Caleb is driving at a speed of 21.0 m/s when he sees a deer on the road ahead. He applies the brakes…

A: Given data: Initial velocity (v0) = 21.0 m/s Displacement (∆x) = 180 m Final velocity (v) = 0 m/s…

Q: While traveling at 89.52 km/h, a driver drops her cell phone on the floor of the car.  She reaches…

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Q: A dog slips out of its collar while going for a walk and runs away at full speed.  By the time the…

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Q: An engineer in a locomotive sees a car stuck on a track at a railroad crossing in front of the…

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Q: Destiny is eating lunch at her favorite cafe when her friend Jada calls and says she wants to meet…

A:

Q: A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long.…

A: When no force acts on a body the acceleration of the body is zero.  When a body moves under zero…

Q: Two soccer players start from rest, 43 m apart. They run directly toward each other, both players…

A: According to the given data S=43m v a1=0.49m/s2 a2= 0.46m/s2 we need tot find (a) time before they…

Q: On a spacecraft two engines fire for a time of 567 s. One gives the craft an acceleration in the x…

A: Given: Timing of fire the engine (t) = 567 s. Acceleration of engine in direction x (ax) = 4.8 m/s2.…

Q: An ambulance driver is rushing a patient to the hospital. While traveling at 72 km/h, she notices…

A: Initial speed, u = 72 km/h = (72×5)/18 m/s = 20 m/sDistance, s = 52 mTime, t = 2.17 sAcceleration, a…

Q: A thief is trying to escape from a parking garage after completing a robbery, and the thief’s car is…

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Q: An airport terminal has a moving sidewalk to speed passengers through a long corridor. Larry does…

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Q: A car is traveling with a constant speed along a road that has a form of an equilateral triangle.…

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Q: A woman on a bridge 81.2 m high sees a raft floating at a constant speed on the river below. She…

A: The height of the bridge is The initial speed of the stone is The initial position of the raft is…

Q: 12. A spacecraft is traveling with a velocity of va. = 5480 m/s along the +x direction. Two engines…

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Q: An object is released from rest on a planet that has no atmosphere. The object falls freely for 4.9…

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Q: A jet airplane touches down on an airport runway with a speed of 213 km/hr. It slows at a constant…

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Q: A spacecraft starts from rest, and makes a journey to a destination 109000 km from its starting…

A: Given, The spacecraft travels half of the journey at an acceleration of 7.56 m/s2       for first…

Q: A spacecraft is traveling with a velocity of v0x = 5010 m/s along the +x direction. Two engines are…

A: Given data: The x-component of the initial velocity of the spacecraft, v0x=5010 m/s. The time…

Q: A man walks on a straight road from his home to a market 5 km away with a speed of 10 km/h. Finding…

A: GivenThe distance between the home and market (d) = 5 kThe velocity at which the person travelled…

Q: is on a street that has a posted speed limit of vm=75 km/hr and is traveling above the speed limit…

A: GivenSpeed limit, vm=75 km/hSpeed of driver above speed limit, vc=28 km/hDistance between driver and…

Q: Carl is eating lunch at his favorite cafe when his friend Isaac calls and says he wants to meet him.…

A: Isaac's driving speed, vi = 65.0 mph Carl's driving speed, vc = 50.0 mph  Time taken by Carl to eat…

Q: The engineer of a passenger train traveling at 25.0 m/s sights a freight train whose caboose is 200…

A: (1)Initial Velocity,(u)=25 m/sec --------(1) [Given] freight train ahead distance,(x)=200 m…

Q: An engineer is designing the runway for an airport. Of the planes that will use the airport, the…

A: Given data: Magnitude of minimum acceleration is, a=3 m/s2. Take-off speed is, v=65 m/s.

Q: The infamous chicken is dashing toward home plate with a speed of 5.7 m/s when he decides to hit the…

A: (a) The magnitude of acceleration is given by,

Q: A typical jetliner lands at a speed of 160 mi/h and decelerates at the rate of (10.0 mi/h)/s. If the…

A:

Q: Question #2: A Tesla Model 3 is driving down Bank Street in Ottawa, Ontario. It is driving along…

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Q: A speeder travelling at a constant velocity of 40 m/s passes by a police car that is initially at…

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Q: A Boeing 747 "Jumbo Jet" has a length of 64.5 m. The runway on which the plane lands intersects…

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Q: Nerve impulses in a human body travel at a speed of about 100 m/s. Suppose a person accidentally…

A: The distance travelled by the nerve impulse is d=1.6m

Q: An initially motionless test car is accelerated uniformly to 135 km/hr in 8.08 seconds before…

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Q: The engineer of an intercity train observes a rock slide blocking the train's path 550 m ahead and…

A: Given data:  Distance (s) = 550 m Acceleration (a) = -1.7 m/s2 Final velocity (V) = 0 m/s Required:…

Q: The engineer of a passenger train traveling at 25.0 m/s sights a freight train whose caboose is 200…

A:

Q: Moving sidewalks are installed every other 50 meters along the entire stretch of an airport walkway.…

A: The given values with suitable variables are listed below. Here, d denotes the distance of…

Q: George, the absent-minded professor, drives his car 5.0 miles due east along a straight road to the…

A:

Q: An airport terminal has a moving sidewalk to speed passengers through a long corridor. Larry does…

A: Given data The time required by larry to walk through the corridor is tl = 180 s. The time required…

Q: A car is traveling with a constant speed along a road that has a form of a square. The car starts at…

A: Given:road is of square shape ABCDFrom the diagram below, the car starts fromone side lets say from…

Q: While driving at 45.0 mi/hr (20.1 m/s) on a straight portion of Route 9 West, Randi notices that the…

A: initial velocity = V0=  20.1m/s final velocity = V = 0 m/s displacement = S= 60 m acceleration = a =…

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 –