A metro train moves 140km/hr east for an hour and then moves 120km/hr west for an...
A metro train moves 140km/hr east for an hour and then moves 120km/hr west for an hour. describe how you will find the average velocity. What is the displacement in this problem and what is the average velocity in this problem?
Homework Answers
If we assume that the unit vector along the east direction is 'i' , then
displacement of the train in its 2 hours journey, d = (140X1)i - (120X1)i =20 i km
average velocity, v = d / t [ where, t = 2 hours] = (20/2) i =10 i km/h
i.e average velocity = 10 km/h in the east direction (Ans)
Add Answer to:
A metro train moves 140km/hr east for an hour and then moves
120km/hr west for an...
A train at a constant 56.0 km/h moves east for 38.0 min, then in a direction...
A train at a constant 56.0 km/h moves east for 38.0 min, then in a direction 51.0° east of due north for 28.0 min, and then west for 48.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip?
A train at a constant 78.0 km/h moves east for 36.0 min, then in a direction...
A train at a constant 78.0 km/h moves east for 36.0 min, then in a direction 52.0° east of due north for 25.0 min, and then west for 46.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip?
Chapter 04, Problem 005 A train at a constant 77.0 km/h moves east for 31.0 min,...
Chapter 04, Problem 005 A train at a constant 77.0 km/h moves east for 31.0 min, then in a direction 54.0° east of due north for 22.0 min, and then west for 41.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? (a) Number Units (b) Number Units
A train at a constant 44.0 km/h moves east for 49.0 min, then in a direction...
A train at a constant 44.0 km/h moves east for 49.0 min, then in a direction 51.0° east of due north for 27.0 min, and then west for 59.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? (a) Number Units (b) Number the tolerance is +/-2% Units
A train at a constant 57.0 km/h moves east for 36.0 min, then in a direction...
A train at a constant 57.0 km/h moves east for 36.0 min, then in a direction 48.0° east of due north for 25.0 min, and then west for 46.0 min. What are the (a) magnitude and
A train at a constant 46.0 km/h moves east for 48.0 min, then in a direction...
A train at a constant 46.0 km/h moves east for 48.0 min, then in a direction 51.0" east of due north for 21.0 min, and then went for 58.0 min. What are the (a) magnitude and (b) angle relative to east) of its average velocity during this trip? (a) Number Units (b) Number Units
A cyclist rides due east for 48.5 percent of the time and due west for the...
A cyclist rides due east for 48.5 percent of the time and due west for the rest of the time. The average eastward velocity has magnitude 16. miles/hour while the average westward velocity has a magnitude of 12.5 miles per hour. (A) Find the average velocity (magnitude and direction) and (B) the average speed for the entire race. (C) Find the total displacement and (D) the total distance covered, if he rode for two hours and a quarter.
Train Ride You are on a train traveling east at speed of 23 m/s with respect...
Train Ride You are on a train traveling east at speed of 23 m/s with respect to the ground. you wal e toward thc front of the train, with a speed of 2.8 m/s with respect to the train, what is your velocty with respect to the ground /s eastSubmit it m 2) If you walk west toward the back of the train, with a speed of 2.6 m/s with respect to the train, what is your velocity with respect...
•An airplane flies East (+x) for 2 hours at 500 mile/hr •Then North (+y) for 1...
•An airplane flies East (+x) for 2 hours at 500 mile/hr •Then North (+y) for 1 hour at 450 mile/hr •Then West (-x) for 1 hour at 400 mile/hr •What is the average velocity for that 4 hour period? x & y components and magnitude and direction
A locomotive pulls a train of 10 identical cars, on a track that runs east-west, with...
A locomotive pulls a train of 10 identical cars, on a track that runs east-west, with a force of 3.70 × 106 N directed east. What is the force with which the last car to the west pulls on the rest of the train? Assume east to be in the +x-direction. Enter a positive answer if force is due east and a negative answer if the force is due west.
Chapter 04, Problem 005 A train at a constant 77.0 km/h moves east for 31.0 min, then in a direction 54.0° east of due north for 22.0 min, and then west for 41.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? (a) Number Units (b) Number Units
A train at a constant 44.0 km/h moves east for 49.0 min, then in a direction 51.0° east of due north for 27.0 min, and then west for 59.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? (a) Number Units (b) Number the tolerance is +/-2% Units
A train at a constant 46.0 km/h moves east for 48.0 min, then in a direction 51.0" east of due north for 21.0 min, and then went for 58.0 min. What are the (a) magnitude and (b) angle relative to east) of its average velocity during this trip? (a) Number Units (b) Number Units
Train Ride You are on a train traveling east at speed of 23 m/s with respect to the ground. you wal e toward thc front of the train, with a speed of 2.8 m/s with respect to the train, what is your velocty with respect to the ground /s eastSubmit it m 2) If you walk west toward the back of the train, with a speed of 2.6 m/s with respect to the train, what is your velocity with respect...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago