ZuoTi.Pro
Question

91: (12.5 points) Two cars of the same mass run head-on into each other at C. After the collision, the car skid with their brakes locked and come to a stop in the positions shown in the lower part of the figure. Knowing that the speed of the car A just before the impact was 8 km/hr and that the coefficient of kinetic friction between the pavement and the tires of both cars is 0.30, determine (a) the speed of the car B just before impact, (b) the effective coefficient of restitution between the two cars.

engineering   Mechanical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

2.46 mls .52 226 -2. 222 2. 222-(-4 S О-2.069

0 0
Add a comment
Know the answer?
Add Answer to:
91: (12.5 points) Two cars of the same mass run head-on into each other at C....
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A 2000 [Ib) sports car collides into the rear end of a 5000 [ib] SUV stopped...

    A 2000 [Ib) sports car collides into the rear end of a 5000 [ib] SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 15.0 [t] before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.85 calculates the speed of the sports car at impact. What was that speed? cooh/ -m12.72

  • You have been called to testify as an expert witness in a trial involving a head-on...

    You have been called to testify as an expert witness in a trial involving a head-on collision. Car A weighs 1515 lb and was traveling eastward. Car B weighs 1125 lb and was traveling westward at 44.0 mph. The cars locked bumpers and slid eastward with their wheels locked for 20.5 ft before stopping. You have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750. How fast (in miles per hour) was car A...

  • If you could please show the formulas used I would really appreciate it! You are called...

    If you could please show the formulas used I would really appreciate it! You are called as an expert witness to analyze the following auto accident: Car B, of mass 1900 kg, was stopped at a red light when it was hit from behind by car A, of mass 1500 kg. The cars locked bumpers during the collision and slid to a slop with brakes locked on all wheels. Measurements of the skid marks left by the tires showed them...

  • I need answer in terms of meters. in terms of meters and kilograms not ft, lbs...

    I need answer in terms of meters. in terms of meters and kilograms not ft, lbs A 2000 (lb) sports car collides into the rear end of a 5000 fib) SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 15.0 [) before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.85, calculates the speed of the sports car at impact. What was...

  • You have been called to testify as an expert witness in a trial involving a head-on...

    You have been called to testify as an expert witness in a trial involving a head-on collision. Car A weighs 1515 lb and was traveling eastward. Car B weighs 1125 lb and was traveling westward at 43.0 mph. The cars locked bumpers and slid eastward with their wheels locked for 17.5 ft before stopping. You have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 How fast (in miles per hour) was car A...

  • Two cars are traveling in the same lane in the same direction. They are 120 ft...

    Two cars are traveling in the same lane in the same direction. They are 120 ft apart and are both traveling at 60 mph. The roadway is level. The leading car hits a disabled milk truck and comes to an instatenous stop. The perception-reaction time of the driver in the trailing car is ½ second. The driver of the trailing car locks the brakes and skids into the lead car. The coefficient of friction between the roadway and skidding tires...

  • Chapter 07, Problem X11 An automobile has a mass of 1760 kg and a velocity of...

    Chapter 07, Problem X11 An automobile has a mass of 1760 kg and a velocity of 20.2 m/s. It makes a rear-end collision with a stationary car whose mass is 2100 kg. The cars lock bumpers and skid off together with the wheels locked. (a) What is the velocity of the two cars just after the collision? (b) Find the impulse that acts on the skidding cars from just after the collision until they come to a halt. (c) If...

  • You are an insurance investigator trying to figure out if a driver making an insurance claim...

    You are an insurance investigator trying to figure out if a driver making an insurance claim was exceeding the speed limit before a collision. Driver A has a car of mass mA, which slammed into Car B (mass mB) which was at rest at a stop sign before the collision. The two cars locked their bumpers during the collision. From the damage, you estimate that the collision speed was v_hit. You can tell from marks at the scene of the...

  • A 920-kg sports car collides into the rear end of a 2100-kg SUV stopped at a...

    A 920-kg sports car collides into the rear end of a 2100-kg SUV stopped at a red light on a flat dry level road. The bumpers lock, the brakes are locked, and the two cars skid forward 4.0 m before stopping. The police officer on scene, using her SmartPhone, looks up the coefficient of kinetic friction between rubber tires and concrete road as 0.80, she then calculates the speed of the sports car at impact. What was that speed?

  • When examining the scene of an accident involving two cars, investigators measure 73-m-long skid marks of...

    When examining the scene of an accident involving two cars, investigators measure 73-m-long skid marks of one of the cars, which nearly came to a stop before colliding. The coefficient of kinetic friction between rubber and the pavement is about 0.90. Estimate the initial speed of that car assuming a level road.

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT