What is the kinetic energy of the car at point b

Assignment Help Physics
Reference no: EM13998163

A roller-coaster car with a mass of 1200 kg starts at rest from a point 20 m above the ground. At point B, it is 9 m above the ground. If the work done against friction between the starting point and point B is 40,000 J (40 kJ), what is the kinetic energy of the car at point B?

Reference no: EM13998163

Questions Cloud

Implications for economic explosure : What does this imply about the inflation differential (Mexico inflation minus U.S. inflation), assuming that the peso interest rate is the same in both countries? Does this imply that the Mexican peso will appreciate or depreciate? Explain.
What is the net force exerted on each charge by the others : Point charge A with a charge of +3.00 muC is located at the origin. Point charge B with a charge of +6.00 muC is located on the x axis at x = 7.00 cm. And point charge C with a charge of +2.00 μC is located on the y axis at y = 6.00 cm. What is th..
Formulate the integer programming model for this problem : The Texas Consolidated Electronics Company is contemplating a research and development program encompassing eight research projects. Formulate the integer programming model for this problem and solve it using the computer
What is the the tension : A massless string is wrapped around a cylinder of mass 0.59 kg and radius 0.28 m. The string attached to the ceiling. The cylinder is released. As it falls, the string unwinds. What is the the tension?
What is the kinetic energy of the car at point b : A roller-coaster car with a mass of 1200 kg starts at rest from a point 20 m above the ground. At point B, it is 9 m above the ground. If the work done against friction between the starting point and point B is 40,000 J (40 kJ), what is the kineti..
Why does the exact shape of the hill not matter : You may neglect friction and air resistance. (For clarification: the bottom of the hill is at ground level, as is the bottom of the loop). How high must the hill be to ensure that the car doesn't fall off the loop? [Hint: first, find symbolically..
Sketch the energy graph for the potential energy : Sketch the energy graph for the potential energy and the total energy of the spring-object system as a function of compression distance x from x = -xmax to x =0.
What is its average velocity over this time interval : A rolling ball moves from x1 = 8.5cm to x2 = -4.2cm during the time from t1 = 3.0s to t2 = 6.7s. What is its average velocity over this time interval?
What will be the angular speed of the cylinder : A Rope is wrapped around a cylinder with a diameter of 500 cm. When the rope is pulled, it causes the cylinder to rotate around an axis through its center. If the cylinder starts from rest, and the tension in the rope is a constant 20.0 N, what wi..

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd