The driver of a car is initially moving at a constant speed of 70.4 km/h when a traffic light turns red. If a 0.520 s reaction time is required before the brakes can be applied, what is the distance in meters traveled by the car before it begins to slow down?

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

A: Given ,         initial speed = 213 kmhr                       u = 213x518ms…

Q: The world's fastest land animal, the cheetah, can accelerate at 8.15 m/s2 to a top speed of vcmax =…

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Q: A driver is initially traveling 21.1m/s to the right and then slams on the brakes to accelerate at a…

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Q: the amount of time the red light costs the driver (compared to if the car had not been the red…

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Q: A car is moving at 35.1 m/s. On wet concrete, a car can decelerate at a rate of 6.35 m/s2. Finding…

A: Solution:-Given thatInitial velocity of car (u)=35.1 m/sDecceleration of car (a)=6.35 m/s2Reaction…

Q: The LRT passes through a station with an initial velocity of 23 m/s and decelerates at a rate of…

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Q: In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a…

A: Let AB is first interval and after the pit BC is second interval.

Q: A car travels at 30.0 m/s and sees a truck 100.0 m ahead of it that is traveling at 20.0 m/s. The…

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Q: A rocket-powered sled moves along the track, eventually reaching a top speed of 230 m/s to the west.…

A: Given:-             Speed u =  230 m/s.    Final speed v = 0 m/s         Time taken t = 4.42 s…

Q: cheetah spots a gazelle 60.0 m away.  The cheetah accelerates at 7.5 m/s2 toward the gazelle.  The…

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Q: The problem states, "A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it…

A: Given data:  Initial velocity (V0) = 0 m/s Acceleration (a1) = 2.00 m/s2 Velocity (V1) = 20.0 m/s…

Q: Speedy Sue, driving at 35.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 160 m…

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Q: Suppose a car is traveling at +21.4 m/s, and the driver sees a traffic light turn red. After 0.511 s…

A: Initial velocity (u) = +21.4 m/sReaction time (t) = 0.511 sDeceleration (a) = -5.00 m/s2 Final…

Q: Two kids are racing towards a toy somewhere between them. Albert is to the West of the toy and Betty…

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Q: You need to drive 69.7 km (43.3 miles) for an interview. The interview is at 11:15 am, you leave at…

A: The total distance to be covered is - D = 69.7 km , You decided to drive at 100 km /hr . Let's…

Q: Ima Rushin can travel from Milwaukee Avenue to the school entrance gate at a constant speed of 22.5…

A: Given:-  The constant speed of the Ima Rushin is u = 22.5 m/s. when the lights are green and there…

Q: Suppose a car is traveling at +24.7 m/s, and the driver sees a traffic light turn red. After 0.262 s…

A: Given Data: Initial velocity of the car (vi) = 24.7 m/s.Reaction time (t) = 0.262 s.Acceleration (a)…

Q: A ranger in a national park is driving at 22.0 mi/h when a deer jumps into the road 180 ft ahead of…

A: The initial velocity of a ranger is, u=22 mi/hr=9.835 m/s The final velocity of a ranger is, v=0 m/s…

Q: A student begins at rest and then walks north at a speed of v1 = 0.55 m/s. The student then turns…

A: Given: Speed v1 = 0.55 m/s along north direction Speed v2 = 0.53 m/s along south direction Taking…

Q: A car is traveling along a horizontal road with an initial velocity of 17.8 m/s in the positive…

A: The given values are,

Q: Alcohol consumption slows people's reaction times. In a controlled government test, it takes a…

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Q: An electric vehicle starts from rest and accelerates at a rate of 3.0 m/s2 in a straight line until…

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Q: A driver is traveling 18.0 m/s when she sees a red light ahead. Her car is capable of decelerating…

A: Given u=18m/s (initial velocity of car) t1=0.380 s (time for driver to hit the brakes) Distance…

Q: A car is coasting backwards down hill at a speed of 3.0m/s when the driver gets the engine started.…

A: Average acceleration

Q: Ben and Holly were playing with a flash drive in the computer room. Ben slid the flash drive on top…

A: Given information: The Initial velocity of the flash drive (u) =  2.5 m/s The height from which it…

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 247 m/s to the west.…

A: This question is based on Motion in a straight line topic. We need to use equations of motion to…

Q: What is the total distance covered?

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Q: A child on a bicycle approaches a stop sign and applies the brakes to slow to a stop. If the…

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Q: The contraction of the left ventricle of the heart lasts for 250 ms and the blood speed after…

A: Given - The contraction time of the left ventricle of the heart ( ∆T )=250 ms=250×10-3 s The rate…

Q: In 1967, New Zealander Burt Munro set the world record for an Indian motorcycle, on the Bonneville…

A: To find the total time taken to travel the given distance, it is given, According to kinematic…

Q: stopping

A: Given: The initial speed of the airplane = 201 Km/hr= 55.83 m/s Time taken to stop the airplane =…

Q: A car is traveling at a speed of 30 m/s, a typical highway speed, on wet pavement. The driver sees…

A: Initially, speed of the car was, u = 30 m/s. The driver took t1 = 0.75 s to apply the brake Distance…

Q: He spots a juicy one in the grass and takes off from our porch at 5.22 m/s. When he reaches the…

A: The speed of Boomer v =5.22 m/s The distance moved by Boomer d=8.16 m The time taken by Boomer is…

Q: The citizen leaves a city at 3:00 p.m. It travels at 36.0 m / s when the engine of its car stops.…

A: Given: Initial speed of car (u) = 36.0 m/s During first t1 =12 seconds the acceleration of car = a1.…

Q: In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a…

A:

Q: A car starts from rest at a stop sign. It accelerates at 3.1 m/s2  for 3 s , coasts for 6 s , and…

A: The distance traveled with an acceleration of 3.1m/s2 can be obtained as…

Q: A single-engine air plain starts its engine at one end of the runway. It accelerates at a constant…

A: Given, velocity v=38 m/s time t=20 s

Q: car is driving along 15 m/s and is approaching a crosswalk with a baby carriage in the middle. The…

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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 –