Question

1.You are headed down a highway at 30.0m/s in your 1210 kg car texting away on your phone when you just happen to look up and see that you have crossed the centerline and are colliding with a 36300 kg truck going 30.0m/s in the opposite direction. Momentum is conserved in all collisions. Sketch and label a diagram choosing which direction is positive.

A.what is the total momentum of the two-vehicle system keeping in mind that the momentum is a vector?

B.What is the velocity of the center mass of the system?

C.Newer cars are made to crumple up in a collision meaning that it is an elastic collision and both vehcules stick to the center of mass after the collision. What velocity is the coupled vehicle system moving after the collision?

D.What impulse was delivered to the track?

F.How much average force is exerted on your car if the collision lasted 0.250 seconds?

G.Long ago, cars were made more rigid and the collisions were much more elastic. Assume an elastic collision and first find the relative velocity between the car and the center of mass before the collision?

H.In an elastic collision, objects bounce off of the center of mass with a relative velocity opposite that I which they bounced into the center of mass. Find the velocity if the car after the elastic collision with the truck?

I.What impulse is delivered to your car in the elastic model?

Answer 1