Find the velocity of the heavier car after the collision

Assignment Help Physics
Reference no: EM13545687

Two railroad freight cars with masses 110 Mg and 140 Mg approach with equal speeds of 0.350 m/s. They collide, the lighter car rebounding opposite its original direction at 0.330 m/s. A) Find the velocity of the heavier car after the collision. Assume the original direction of the lighter car is positive. (Express your answer to two significant figures and include the appropriate units.) B) What fraction of the original kinetic energy was lost in this inelastic collision? (Express your answer using two significant figures.)

Reference no: EM13545687

Questions Cloud

What is the radius of the planet : A 20 kg satellite has a circular orbit with a period of 2.3 h and a radius of 6.5 106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 7.6 m/s2, what is the radius of the planet?
Place the meterstick atop your finger so it balances : You have a 120g meterstick. A) Where should you place the meterstick atop your finger so it balances? (Express your answer to two significant figures and include the appropriate units.) B) Where's the balance point if you place an additional 150 mass..
Find the velocity of wreckage immediately after collision : A 1300 kg car and 4940 kg truck undergo a perfectly inelastic collision. Before the collision, the car was traveling southward at 1.35 m/s, and the truck westward at 9.40 m/s. Find the velocity of the wreckage immediately after the collision. (Enter ..
Surface remains in place during rapid rotation : Certain neutron stars (extremely dense stars) are believed to be rotating at about 1000 rev/s. If such a star has a radius of 11 km, what must be its minimum mass so that material on its surface remains in place during the rapid rotation?
Find the velocity of the heavier car after the collision : Two railroad freight cars with masses 110 Mg and 140 Mg approach with equal speeds of 0.350 m/s. They collide, the lighter car rebounding opposite its original direction at 0.330 m/s.
Calculate time it takes pottery wheel to reach its speed : A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 2.8and accelerates at the rate of 6.3 , and it is in contact with the pottery wheel (radius 28.0 ..
Whats the magnitude of its momentum : A 150g ball has a kinetic energy 27.2J. What's the magnitude of its momentum? Next, use that answer to find its speed. Express your answers with the appropriate units.
Fixed axis with initial angular velocity magnitude : An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.210 . The magnitude of the angular acceleration is 0.890 . Both the the angular velocity and angular accleration are directed clockwise.
Determine the exit temperature and the exit velocity of air : Air at 90 kpa and -10 C enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves with a low velocity at a pressure of 100 kpa. The exit area of the diffuser is 4 times the inlet area. Determine (a) the exit temperature and (b) the ..

Reviews

Write a Review

Physics Questions & Answers

  How far would the ball fall in twice that time

How long does it take for a golf ball to fall from rest for a distance of 12.0 m? How far would the ball fall in twice that time

  What is the average force exerted by the wall

A 3-kg steel ball strikes a wall with a speed of 13-m/s at an angle of 60.0° with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for 0.20s, what is the average force exerted by the wall on the..

  Find the ratio of electric and magnetic field strengths

A device called a velocity selector is a tube with a crossed electric and magnetic fields set up so that the particle entering with a velocity v_0 along the axis of the tube experiences zero net force.

  How far does the top surface move relative to bottom surface

Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. How far does the top surface move relative to the bottom surface

  What is the change in the internal energy of the gas

Figure 19-26 shows two paths that may be taken by a gas from an initial point i to a final point f. Path 1 consists of an isothermal expansion (work is 60 J in magnitude), an adiabatic expansion (work is 38 J in magnitude), an isothermal compression ..

  Characteristic velocities newtonian or relativistic

In a tube filled with atoms that were excited by an electric current, some of the vibrating atoms move towards the observer while others move away as a result of the particles' random motion, and as a result of the doppler effect, the spectral lin..

  How high is the rock above the ground

If the gravitational potential energy of a 30.7-kg rock is 643 J relative to a value of zero on the ground, how high is the rock above the ground

  Determine the resistance of each resistor

The circuit shown in the drawing is constructed with six identical resistors and an ideal battery. When the resistor R4 is removed from the circuit, Determine the resistance of each resistor

  Compute how many photons are emitted per second

A 2.90mW helium neon laser emits a visible laser beam with a wavelength of 635nm. How many photons are emitted per second

  What is average translational kinetic energy of a neon atom

Consider one mole of neon gas at a temperature of 25°C. Assume neon behaves as an ideal, monatomic gas at this temperature. What is the average translational kinetic energy of a neon atom at this temperature? What is the total random translational ki..

  Why is a loud sound produced and why is it only produced

A pipe is closed at one end. A speaker attached to an adjustable signal source is placed very near the open end. The volume of the speaker is set very low so that the sound can barely be heard. However, as the frequency of the source is adjusted i..

  What is the mass of the bell

When the distance is 0.20m the tension is 628 N, horizontal pivot force is 581 N and the vertical pivot force is 839N. What is the mass of the bell

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