A train locomotive pulls a train with a mass of 1.00 ✕ 107 kg on level rails. The locomotive exerts a constant force of 6.70 ✕ 105 N on the train. How much time does it take to increase the speed of the train from rest to 78.0 km/h? (Ignore any resistance force from the rails on the wheels of the train. Enter your answer in minutes.)

Question
Asked Nov 2, 2019
A train locomotive pulls a train with a mass of 1.00 ✕ 107 kg on level rails. The locomotive exerts a constant force of 6.70 ✕ 105 N on the train. How much time does it take to increase the speed of the train from rest to 78.0 km/h? (Ignore any resistance force from the rails on the wheels of the train. Enter your answer in minutes.)
check_circle

Expert Answer

Step 1

Given information:

Mass of the train (m) = 1.0 × 107 Kg

Force the locomotive can exert (F) = 6.7 × 105 N

Final velocity that is needed to be achieved (v) = 78 kmph

Step 2

According to Newton 2nd law the forced exer...

F = ma
Where "a" is the acceleration of the locomotive
6.7 X 105
0.067 m/s2
a
_
1.0 x107
т
help_outline

Image Transcriptionclose

F = ma Where "a" is the acceleration of the locomotive 6.7 X 105 0.067 m/s2 a _ 1.0 x107 т

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Newtons Laws of Motion

Related Physics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: A wheel 33 cm in diameter accelerates uniformly from 245 rpm to 380 rpm in 6.4 s. How far will a poi...

A: Radius of the wheel,

question_answer

Q: Concave mirror Experiment   object height = 0.60m object distance = 3.00cm Radius of curvature = 4.0...

A: The relation between image distance, object distance and magnification (m) is:

question_answer

Q: A skier of mass 64 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to...

A: Given:Mass of the skier, m = 64 kgSlope = 30 degreesConstant velocity of the skier upto the slope, v...

question_answer

Q: A 8.90-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulle...

A: The net horizontal force acting on the object mass m1 is,The net vertical force acting on the object...

question_answer

Q: why does nuclear fusion in the sun only occur near the center?

A: Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more dif...

question_answer

Q: a car of mass M traveling at velocity v1 to the right strikes a wall and bounces back with a velocit...

A: a)The impulse and the average force on the car is,

question_answer

Q: N2B.7 Supply the requested diagrams and explanations. (a) Draw a free-body diagram for a motorboat a...

A: (a)Free body diagram of the motorboat in still water is:

question_answer

Q: Junior throws his mashed potatoes onto his mother's lazy susan, which has a moment of inertia I. If ...

A: The initial angular momentum of potatoes = mvd,where, m is the mass of the potato, v is the horizont...

question_answer

Q: The horizontal and vertical components of the initial velocity of a football are 24 m/s and 7 m/s re...

A: The expression for the magnitude of the initial velocity,