Question

10. A car with mass 1000 kg travels at 30 m/s, while a second car with...

10. A car with mass 1000 kg travels at 30 m/s, while a second car with mass 1500 kg travels at 20 m/s. The two cars collide in a perfectly inelastic collision. What is the final velocity (speed and direction) if the first car was travelling north and the second travelling south? If the first car were travelling north and the second were travelling east?

Homework Answers

Answer #1

Let's take sing convention for the directions as-

NORTH is +j, SOUTH is -j, EAST is +i and WEST is -i

let's call both cars as car A and car B

mass of car A MA = 1000 Kg

mass of car B MB =  15000 Kg

first cast

velocity of car A VA = 30 (j) m/sec

velocity of car B VB= 20 (-j) m/sec

let the velocit after collision be V

so by conservaton of liear momentum

putting values gives

V= 0 j m/sec

which mean both at cars stops after collision

For case 2

now VA= 30 (j) and VB= 20(i)

again by conservation of linear momentum

the magnitude of the velocity is =

direction is north east

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
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...
A 1000-kg car approaches an intersection traveling north at 20.0 m/s. A car of equal mass...
A 1000-kg car approaches an intersection traveling north at 20.0 m/s. A car of equal mass approaches the same intersection traveling east at 22.0 m/s. The two cars collide at the intersection and lock together. Ignoring any external forces that act on the cars during the collision, what is the velocity ,aka, magnitude and direction, of the cars immediately after collision?
A ball of mass 2 kg is traveling towards you at 15 m/s. You are at...
A ball of mass 2 kg is traveling towards you at 15 m/s. You are at rest and have a mass of 75 kg. Assuming you catch the ball, what is your final velocity? Assuming the ball bounces off you and travels in the opposite direction with a velocity of 12 m/s, what is your velocity? A car of 1200 kg travels east at 24 m/s while a truck of 2200 kg travels north at 19 m/s. They collide and...
Two cars, both of mass m, collide and stick together. Prior to the collision, one car...
Two cars, both of mass m, collide and stick together. Prior to the collision, one car had been traveling north at speed 3v, while the second was traveling at speed 2v at an angle ? south of east (as indicated in the figure). After the collision, the two-car system travels at speed vfinal at an angle ? east of north. (Figure 1) Find the speed vfinal of the joined cars after the collision. Express your answer in terms of v...
Two cars collide at an intersection. Car A, with a mass of 2000 kg, is going...
Two cars collide at an intersection. Car A, with a mass of 2000 kg, is going from west to east, while car of mass 1500 kg, is going from north to south at 15 m/s. As a result, the two cars become enmeshed and move as one. As an expert witness, you inspect the scene and determine that, after the collision, the enmeshed cars moved at an angle of 52∘ south of east from the point of impact. How fast...
A car of mass m1 = 2000.0 kg is moving at speed v1i = 20.0m/s towards...
A car of mass m1 = 2000.0 kg is moving at speed v1i = 20.0m/s towards East. A truck of mass m2 = 5000.0 kg is moving at speed v2i = 10.0m/s towards North. They collide at an intersection and get entangled (complete inelastic collision). 1. What is the magnitude and direction of the final velocity of the entangled automobiles? 2. How much kinetic energy is lost in the collision. That is, calculate the change in the kinetic energy of...
A car with a mass of 1,400 kg and a speed of 15 m/s heading north...
A car with a mass of 1,400 kg and a speed of 15 m/s heading north approaches an intersection. At the same time, a minivan with a mass of 1,800 kg and speed of 22 m/s heading east is also approaching the intersection. The car and the minivan collide and stick together. What is the velocity of the wrecked vehicles just after the collision? Ignore friction between the tires and the surface of the road. (Enter the magnitude in m/s...
A 900 kg car moving East with speed of 20 m/s collides with a 1500 kg...
A 900 kg car moving East with speed of 20 m/s collides with a 1500 kg car moving North with speed of 15 m/s at an intersection. Both cars stick together after collision. What is the speed and direction of these two stuck cars immediately after this collision?
a car (m1=2000kg) is traveling east with a velocity of 20i m/s. this car collieds with...
a car (m1=2000kg) is traveling east with a velocity of 20i m/s. this car collieds with a second car (m2=1500kg) that is traveling north with a velocity 20j m/s. these 2 cars tangle together when they collide. what was the total kinetic energy before the collision? what is the magnitude of the momentum of the 2 cars (as 1 system)? what is the speed of the combined mass just after the collision? what is the direction traveled in degrees?
Car #1 with a mass of 1.50 x 103 kg is travelling east at a speed...
Car #1 with a mass of 1.50 x 103 kg is travelling east at a speed of 25.0 m/s. It collides in the middle of an intersection with Car #2 which has a mass of 2.50 x 103 kg and enters the intersection travelling north at a speed of 20.0 m/s. (a) Find the magnitude and direction of the velocity of the wreckage, assuming that after the collision the two cars stick together and that frictional forces can be neglected....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT