Modern oil tankers weigh over a half-million tons and have lengths of up to one-fourth mile. Such massive ships require a distance of 4.5 km (about 2.8 mi) and a time of 17 min to come to a stop from a top speed of 32 km/h. (a) What is the magnitude of such a ship's average acceleration in m/s2 in coming to a stop? (b) What is the magnitude of the ship's average velocity in m/s?

Q: A supersonic car (SSC) has a mass of 9615 kilograms on Earth. The SSC has a fuel consumption rate of…

A:

Q: A basketball starts from rest and accelerates with an acceleration of 0.395 m/s2 while moving down a…

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Q: A motorist drives north for 35 minutes at 85 km/h and then stops for 15 minutes. He then continues…

A: Recall Average velocity=Total displacement/total time

Q: (a) The velocity of a particle changes from v = 2î + 5ĵ -3k m/s to V2= 5î - 7j+ 2k m/s in 2 s. What…

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Q: Using highway mileposts, you clock 4 min,45 s to go 5 m. If the mileposts are accurate, what's the…

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Q: In his novel From the Earth to the Moon (1865), JulesVerne describes a spaceship that is blasted out…

A: Kinematic relation between acceleration and velocity

Q: The average person passes out at an acceleration of 7g (that is, seven times the gravitational…

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Q: The velocity of an object moving along the x-axis is given in m/s by v(t) = t2 − 6t + 8, where t is…

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Q: A student drives 1.91 km due west to get coffee before class. The trip to get coffee takes her 7.00…

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Q: To Merge into the highway you need to increase your speed from 50 km/h to 100 km/h. If your car can…

A:

Q: An object moves along a straight line and experiences a constant acceleration of +1.53 cm/s2. At t =…

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Q: As a train accelerates away from a station, it reaches a speed of 4.6 m/sm/s in 5.3 ss. If the…

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Q: A 1400 kilogram car travelling 12 meters per second brakes uniformly to a stop; it takes 6 seconds…

A: Initial velocity=0 Final velocity=12m Time=6sec

Q: A student drives the 105-mi trip back to campus after spring break and travels with an average speed…

A: Given: Total distance of the trip = 105-mi, Average speed for the first part of the trip, v1 = 56…

Q: Initially stationary (the train starts at rest), a train has a constant acceleration of 0.3 m/s2.…

A: Given: initial speed of train, u = 0 acceleration of train, a = 0.3 m/s2  time taken , t =  18 s

Q: The displacement (in centimeters) of a particle moving back and forth along a straight line is given…

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Q: An unidentified flying object (UFO) is observed to travel a total distance of 29000 m, starting and…

A: Total distance travelled (D) = 29000 m Total time of trip (T) = 1.61 seconds Initial speed (u) = 0…

Q: Over a time interval of 1.54 years, the velocity of a planet orbiting a distant star reverses…

A: GivenInitial velocity is Final velocity is Time interval is We have to find total change in velocity…

Q: A car accelerates with the acceleration a(s) = k · s^n m/s^2, where s is distance in meters, k =…

A: Given Acceleration a = ksn k = 1.190 n = 0.731 final speed v = 1.75 m/s

Q: As a baseball is being thrown, it goes from 0.0 to 40.0 m/s in 0.42 s. (a) What is the acceleration…

A:

Q: The average person passes out at an acceleration of 7g (that is, seven times the gravitational…

A: Given:  acceleration, a = 7 g = 7 x 9.8 = 68.6 m/s2 initial velocity, u = 0 m/s  final velocity, v =…

Q: The average speed of a deer that runs 2 Km in 1/2 hour is equal to     1 km/hr     2 Km/hr     4…

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Q: (a) What is the speed of the ball at the bottom of the first plane (in m/s)? (Round your answer to…

A: Given data: The initial velocity of the volleyball is, u = 0 m/s  Acceleration of the volleyball is,…

Q: An unidentified flying object (UFO) is observed to travel a total dist starting and ending at rest,…

A:

Q: A train has an initial speed of 10 m/sec. It is picking up speed with an acceleration of 6 m/sec/sec…

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Q: An unidentified flying object (UFO) is observed to travel a total distance of 23000 m, starting and…

A:

Q: When a car is moving at x miles per hour and the driver decides to slam on the brakes, the car will…

A: displacement function of the car after breakes are appied is given as s=x+120x2where, x = velocity…

Q: Alice is riding a bike at 12 mph, but decides to sprint.  She takes 0.7 s to accelerate to 19 mph.…

A: Acceleration defined as a rate of change of velocity. Acceleration is a vector quantity, because it…

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: From a speed of 46 kph, a train decelerates at the rate of 2m/min2, along the path. How far in…

A: hereu=46 kmpa=-2 mmin2

Q: (a) The velocity of a particle changes from v1 = 2i + 5j -3k m/s to v2 = 5i - 7j+ 2k m/s in 2 s.…

A: Initial velocity  v1 = 2i + 5j -3k m/s Final velocity v2 = 5i - 7j+ 2k m/s Time interval in which…

Q: Your car travels north along the highway at a constant speed of 65 mph for 30 minutes. Compute the…

A: Given: Initial velocity (u) = 65 mph Time (t) = 30 minutes = 30/60 = 0.5 hours

Q: Over a time interval of 1.52 years, the velocity of a planet orbiting a distant star reverses…

A:

Q: Given the quantities a = 6.7 m, b = 3.1 s, c = 80 m/s, what is the value of the quantity d = cb² ?

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Q: A race car completes a lap on a 1600 m long track with an average speed of 250 km/h. If the car's…

A: The objective of the question is to find the average speed of the race car on the second half of the…

Q: The acceleration due to gravity at Earth's surface is 9.80 m/s2. What is the acceleration at…

A: Planets have a large amount of mass and hence a large gravitational field. They will attract…

Q: An object moves along a straight line and experiences a constant acceleration of +1.36 cm/s2. At t =…

A:

Q: On an avenue, a car travels with a speed of 38 m / s. If the speed limit of 75 mi / hr., will the…

A: Speed of car is 38 m/s. Let it be V. Speed limit is 75 mi/hr.

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 –