You have to drive on an expressway to apply for a job in another city, which is 367 km away. The interview was scheduled for 11:30 am. You plan to drive at 100 km / h and leave at 8 am to have some time to spare. You drive at the planned speed for the first 100 km, but then a stretch under construction forces you to slow down to 38 km / h for 37 km. What is the slowest speed you must maintain for the rest of the trip to arrive on time?    Response to two decimal places and in km / h

Q: NASA is launching a rocket into space from Earth.  This particular rocket burns its fuel for 5…

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Q: You are on your way to a mining site where you have a very important meeting. The mining site is 300…

A: The most crucial scientific notion is measurement. Base or physical fundamental units are used to…

Q: Timnit has to pull the weeds in her mother's garden. She notices a caterpillar crawling along the…

A: Given quantities: The speed of the caterpillar (V) = 0.125 m/s Time taken to travel (t) = 8 seconds…

Q: Two cars leave an intersection, one 17 minutes after the other. The first car, A, travels north at…

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Q: You are trying to get to class on time using the Shuttle. You are later than usual getting to the…

A: The time to run is,

Q: A commuter backs her car out of her garage with a constant acceleration of 1.9 m/s2. Assume that her…

A: According to the Newton's laws of motion , the final velocity of an object is calculated by using…

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 203 m/s to the east.…

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Q: I am driving at 35 mph on a foggy day when I see a car 5 miles ahead of me stopped in the road with…

A: Given  Maxximum decelaration of car is 12 mph/s = 43200 mile/h² Distance of car initialy = 5 miles.…

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

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Q: The science lecture theatre of a college is 10m wide and has a door at a corner. A science teacher…

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Q: A bicyclist rides the first 60 km of a 220 km race in 1.5 hours. What is the bicyclist average…

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Q: You throw a stone straight down into a water well.  The stone starts from a height of 1 meter above…

A:

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: Evan is just leaving his house to visit his grandma. Normally, the trip takes him 25 minutes on the…

A:

Q: Two cars are travelling at constant speeds. A Neon is travelling at 14.85 m/s and a Corvette is…

A: Given:Neon Car is travelling with speed =14.85m/sCorvette Car is travelling with speed=…

Q: You are to drive to an interview in another town, at a distance of 270 km on an expressway. The…

A: Given Information:- Distance between the two towns is d=270 km Total time  t=11:15-8:00  =3h 15 min…

Q: car traveling at 36 m/s runs out of gas while traveling up a 5.0 degree slope. How far will it coast…

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Q: The driver of a truck slams on the brakes when he sees a tree blocking the road. The truck slows…

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Q: You are driving along, when you see an obstacle in the road ahead.  You slam on your brakes and your…

A: Given data:  Acceleration is constant  Time (t) = 2.7 s Distance traveled (s) = 16.9 m Final…

Q: After accelerating up to a speed of 20 m/s on his bike, Jim coasts (stops pedaling). Due to air drag…

A: Initial speed (u) = 20 m/s final speed (v) = 16 m/s t = 10 seconds

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 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: A state trooper is traveling down the interstate at 30 m/s. He sees a speeder traveling at 50 m/s…

A: Speed of trooper is Speed of the speeder is When speeder passes the trooper, the acceleration of…

Q: Evan is just leaving his house to visit his grandmother. Normally, the trip takes him 25 minutes on…

A: Write the formula for the distance in terms of speed and time when the speed is constant.

Q: A student is running at her top speed of5.0 m/s to catch a bus, which is stopped at the bus stop.…

A: Given data: The speed of the student is u=5.0 m/s. The distance of the student is s=40.0 m. The…

Q: A speeder traveling at 1.5 m/s passes a motorcycle policeman at rest at the side of the road. The…

A: Constant speed of speeder (v) = 1.5 msInitial speed of policeman's motorcycle (u) = 0 msAcceleration…

Q: Julie drives 91 mi to Grandmother's house. On the way to Grandmother's house, Julie drives half the…

A: Average speed is, vavg=total distancetotal time Total distance traveled by Julie on the way to…

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: A boy, starting from rest, slides down a snowy hill on a sled. He travels 137.56 m to the bottom of…

A: Given data:  Initial velocity (Vi) = 0 m/s Distance traveled (s) = 137.56 m Acceleration (a) = 3.58…

Q: You are testing a jet back pack on a dummy. You start it rising with an upward acceleration of 3…

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 –