The correct answer is 8.0 m/s.
5. A runaway truck with a mass of 2100 kg strikes a car of mass 1350...
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?
a 25 kg sports car travelling a t 25 m/s smashes into the rear end of a second vehicle stopped at a red l light. the bumpers and brakes are locked and the two cars skid forward 4.5 m Before stopping. friction between tires and road ii is .8. calculate the mass of the second vehicle
A car of mass 2400 kg collides with a truck of mass 4500 kg at the intersection of horizontal roads. The vehicles stick together and slide immediately after the collision. The x- and y-components of the car’s velocity just before the collision are (36, 0) m/s, respectively, and the same components of the truck’s velocity just before the collision are (-15, 25) m/s. a. calculate the x component of the velocity of the combined car and truck immediately after the...
A car of mass 2400 kg collides with a truck of mass 4600 kg, and just after the collision the car and truck slide along, stuck together, with no rotation. The car's velocity just before the collision was <38, 0, 0 m/s, and the truck's velocity just before the collision was C-19, 0, 26> m/s. (a) Your first task is to determine the velocity of the stuck-together car and truck just after the collision. What system and principle should you...
(e) A 1200 kg car is used in a crash test. The car is travelling at 25 m/s when it collides head on with a truck of 3000 kg: (1) What is the momentum of the car before the collision? (2 mark) (ii) At the point of collision, the car and the truck are locked together and immediately stop. How fast was the truck travelling? (2 marks)
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...
The car shown has a mass of 2,000 kg and a center of mass at G. Determine the car’s acceleration if the “driving” wheels in the back are always slipping, whereas the front wheels freely rotate. The coefficient of kinetic friction between the wheels and the road is 0.25. 0.3 m " 1.25 m 0.75 m
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...
A car (m = 2000 kg) is traveling down a 15 degree incline at 65 m/s. The driver slams on the breaks causing the wheels to lock. Omega_x = 0.3. How far S will the tires skid on the road? If the driver can skid only 10 m before hitting another vehicle, how fast will the driver hit the other vehicle?
The driver of one car has a mass of 1200 kg and is traveling at 10 m/s westward when he collides with another car with a mass of 2000 kg that is traveling 15 m/s northward. The two cars stick together after colliding. Please show all work. a) What is the total momentum before the collision and after the collision? b) What are the speed and direction of the cars after the collision? c) If coefficient of kinetic friction between...