An old commuter train travels a distance of 100 km from Union Station to Berkeley’s Crossing in the suburbs. Part A) Traveling at a constant speed of 45 mph, how many hours does the trip take? mph stands for miles per hour.   Part B)The old train was replaced with a new electric train that has a top speed of 70 mph; however, to save money, it was decided that the train will travel half the time at 70 mph and half the time at 55 mph. How many hours does this trip take?

Q: You start out by driving 72 miles south in 3 hours and 20 minutes, and then you stop and park for a…

A:

Q: a) If you want to arrive at a 125 miles far store in Atlanta in 2 hours and 15 minutes, how fast…

A: Given: The distance is X = 125 miles. The time t = 2 hrs 15 minutes.

Q: Which of the following two objects have the same speed value? Bubble in two letters. O An object…

A: An object travels 20 miles in 2 hours An object travels 20 miles in 2 hours

Q: You start out by driving 138 miles south in 4 hours and 38 minutes, and then you stop and park for a…

A: Given: Distance travelled before break=d1=138 miles Time taken to travel distance d1=4 hours 38…

Q: A student estimates that his daily commute to college consists of 10 minutes driving at a speed of…

A: Given v(t) vs t graph:

Q: A car has 1 hour and 20 minutes to travel 80 km. The car travels at 16m/sec for the first 30…

A: The distance covered is, x=utx=16 m/s30 minutes60 s1 minutex=28800 mx=28.8 km   thus, the remaining…

Q: Q20. An object is shot straight up from 10 m above ground level with an initial velocity of vo = 17…

A: Given:The initial height of the object: h=10 mThe initial velocity is given as: v0=17 m/s in the…

Q: Neglecting air resistance, what is the speed of an object (in m/s) 1.7 seconds after being dropped…

A: Our question is to find the speed of an object which is falling freely from a height after 1.7 s

Q: You get pulled over for running a red light. $500 fine. When you get to court, you explain that it…

A:

Q: During take off, an airplane goes from 0 to 50 m/s in 8 s. c) How far has it traveled by the time…

A:

Q: a) How long does it take John to cover the distance if he does half the distance at 6.3 kilometers…

A: John is travelling with speed 6.3 km/hour half distance and at 1.2 km/hour half distance .  We know…

Q: A car travels 21 miles in 20 minutes. a. How many hours did the car spend traveling? b. What was the…

A: a.      A car travels 21 miles in 20 minutes.         so the car spends 20 minutes  in travelling…

Q: Sally has a very important date at eight in the evening, but she has some errands to do first. She…

A: The speed of the person is .The distance of the shopping center is .She talks with her friend for…

Q: 1. A purple line express car starts at Howard station at time 0, pointing north. Its velocity as a…

A: The equation of velocity is given by; v(t)=-6000t2+1000t

Q: Suppose the speed of a motorcycle accelerates from a stop sign and increases every two seconds…

A: Speed is continuously increasing with time. Therefore the speed would reach 35 mph sometime between…

Q: o of hikers is to travel x km by bus at an average speed of 48 km/h to an A group unknown…

A: distance traveled by bus = x Distance covered while walking = x Time for lunch and rest = 2 hours…

Q: A car travels 21 miles in 20 minutes. a. How many hours did the car spend traveling? b. What was the…

A: given-         Distance of travel =21 miles         Time taken = 20 min   a)   time taken by car in…

Q: 5.The average person passes out at an acceleration of 7g (that is, seven times the gravitational…

A: The solution to both the questions is given by using basic relations of velocity, acceleration and…

Q: A police car is traveling south towards the intersection that a robber’s car has just crossed…

A:

Q: During take off, an airplane goes from 0 to 50 m/s in 8 s. b) How fast is it going after 5 s?

A: Given data: Initial speed of the airplane (u) = 0 The speed of the plane after 8 sec is v8 = 50 m/s…

Q: A car is traveling at a speed of 25 m/s, and accelerates at a rate of 1.5 m/s2 for 10 seconds. What…

A: Speed of the car will increase due to acceleration applied on the car.

Q: How much time did you spend parked?

A: Given: Distance covered in north direction is d1=91 miles Time taken to cover distance d1 is t1=4…

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: Superman throws a chocolate-covered peanut into the air and catches it in his mouth 6 seconds later.…

A:

Q: A tourist is walking at a speed of 2.3 m/s along a 7.0-km path that follows an old canal. If the…

A: Speed, v = 2.3 m/sDistance, d = 7 kmSpeed of light in vacuum, c = 3.8 m/s

Q: The table shows how the distance traveled by a motorcycle changed over time at the start of a race.…

A: From the given table, it is observed that, The distance covered by the motorcycle corresponding to…

Q: A road journey takes 5 h 30 min at 90.0 km/h. How much time would be saved by traveling at 1”0 on/h…

A: Dear student,Since both questions are different as per guidelines I can author only firstone. Please…

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 –