Question

Car A hits car B (initially at rest and of equal mass) from behind while going...

Car A hits car B (initially at rest and of equal mass) from behind while going 15 m/s Immediately after the collision, car B moves forward at 10 m/s and car A is at rest. What fraction of the initial kinetic energy is lost in the collision?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Croquet ball A moving at 8.9 m/s makes a head on collision with ball B of...
Croquet ball A moving at 8.9 m/s makes a head on collision with ball B of equal mass and initially at rest. Immediately after the collision ball B moves forward at 5.0 m/s . What fraction of the initial kinetic energy is lost in the collision?
While driving down the street, your friend’s car was hit by a truck from behind.  The mass...
While driving down the street, your friend’s car was hit by a truck from behind.  The mass of your friend’s car is 1500 kg while the truck is 1800kg.  Your friend was driving 25 mph or 11.2 m/s. Assume that collision causes both cars to stick together and they do not supply additional power to the wheels after the collision. After the collision, the two cars slide to a stop. The coefficient of kinetic friction is 0.65 for the car and truck...
Croquet ball A moving at 8.7 m/s makes a head on collision with ball B of...
Croquet ball A moving at 8.7 m/s makes a head on collision with ball B of equal mass and initially at rest. Immediately after the collision ball B moves forward at 7.1 m/s . 1.) What fraction of the initial kinetic energy is lost in the collision? A 25-gg rifle bullet traveling 230 m/sm/s embeds itself in a 3.9-kgkg pendulum hanging on a 3.0-mm-long string, which makes the pendulum swing upward in an arc 1.) Determine the vertical component of...
Question1) A car moving North at 12 m/s strikes a stationary car of equal mass. The...
Question1) A car moving North at 12 m/s strikes a stationary car of equal mass. The first car moves off after the collision at an angle of 30° East of North with a speed of 8.0 m/s. a.   What is the velocity of the struck car just after the collision? b.   Show that the collision is inelastic. c.   Explain how dents, skid marks, etc. show that kinetic energy has been lost. d.   If the collision were perfectly elastic, what would...
1. A mass ma=2m, with an initial velocity of 4 m/s, and a mass mb=m, initially...
1. A mass ma=2m, with an initial velocity of 4 m/s, and a mass mb=m, initially at rest, undergo an elastic collision. Calculate their final velocities after the collision. 2. A mass ma=2m, with an initial velocity of 4 m/s, and a mass mb=m, initially at rest, undergo a perfectly inelastic collision. Calculate the final velocity after the collision and the kinetic-energy loss. 3. A moving mass,m1, collides perfectly inelastically with a stationary mass,m2. Show that the total kinetic energy...
A cart weighing 1500 kg is at rest and is hit from behind by car 2...
A cart weighing 1500 kg is at rest and is hit from behind by car 2 weighing 2500 kg and going 20 m/s. If both momentum and energy is conserved in the collision what is the final speed of each car?
07.1 A 2.00kg mass is initially at rest on the end of a spring that is...
07.1 A 2.00kg mass is initially at rest on the end of a spring that is compressed by 40.0cm from its equilibrium position. The spring has spring constant 800 N/m. This mass is released and the mass shoots away from the spring on a frictionless, horizontal surface. It then hits a 3.00kg mass, and the two masses stick together and slide up a rough-surface hill (with friction) on the other side to a vertical height of 30.0cm. (a) What was...
Two equal masses collide in space away from any gravitational object. Mass A is moving in...
Two equal masses collide in space away from any gravitational object. Mass A is moving in a straight line at 45 m/s and mass B is initially at rest. After the collision mass A is traveling along a path that makes a +30o angle with its initial direction of motion, and mass B is traveling at an angle of -45o relative to A's initial motion. (a) Find the speeds of the two masses after the collision. (b) What is the...
1.) A ball of mass (m) traveling at a speed (v) hits and sticks to a...
1.) A ball of mass (m) traveling at a speed (v) hits and sticks to a block of mass (M) sitting at rest on a frictionless table. Answers for this problem will be in terms of the variables m, v, M and g. Part A: What is speed of the block after the collision? Part B: Show that the mechanical energy is not conserved in this collision. What percentage of the ball’s initial kinetic energy is lost? Include a Free...
A photon with energy of 3m hits a particle of mass m at rest. the photon...
A photon with energy of 3m hits a particle of mass m at rest. the photon "back-scatters" from this interaction (meaning moves it the opposite direction) while the particle moves forward to conserve momentum. Find the back-scattered photon's energy E and the particles speed v.  
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT