? A tonated to drive dans not notice that the car in front of him has stopped. After the impact. the car (2 Mg) and truck (5 Mg) move forward as one rigid body. Answer the following questions. 25 mph a. Is momentum conserved before and after the impact? Aur Tarnonco b. Is energy conserved before and after the impact? Justify your response. What is the combined velocity of the car and truck after the impact? Show your work. Magnitude rounded to 3 sig. fig. Units d. What is the coefficient of restitution? Justify your response either in writing or by showing your work.

Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that exerted on the truck. To substantiate this view, they point out that the car is crushed, whereas the truck is only dented. This idea of unequal forces, of course, is false; Newton's third law tells us that both objects are acted upon by forces of the same magnitude. The truck suffers less damage because it is made of stronger metal. But what about the two drivers? Do they experience the same forces? To answer this question, suppose that each vehicle is initially moving at 8.10 m/s and that they undergo a perfectly inelastic head-on collision. Each driver has mass 73.0 kg. Including the masses of the drivers, the total masses of the vehicles are 800 kg for the car and 4,000 kg for the truck. If the collision time is 0.130 s,…

A block of mass m1 = 13.5 kg slides along a horizontal surface (with friction, μk = 0.31) a distance d = 2.3 m before striking a second block of mass m2 = 8.5 kg. The first block has an initial velocity of v = 9.5 m/s. a)Assuming that block one stops after it collides with block two, what is block two's velocity after impact in m/s?  b) How far does block two travel, d2 in meters, before coming to rest after the collision?

In the following figure, mass 1 slides down the frictionless ramp and undergoes an elastic collision with mass 2, which is initially at rest. Given all of the values shown in the image: a) How far from the table does mass 2 land following the collision? b) Following the collision, does mass 1 slide back up the ramp or does it continue off the table?       i) If it goes back up the ramp, determine the height that it slides back up to.                                  or      ii) If it flies off the table, determine how far away from the table mass 1 lands.