True or false 1. A perfectly inelastic collision means that the kinetic energy is completely lost. 2.During an inelastic collision, the amount of movement is retained 3.The pulse on a particle is in the same direction as the force it undergoes. 4.If the total amount of motion is zero, we are sure that the total kinetic energy will also be zero. 5.In a collision between a larger vehicle and a smaller vehicle, the smaller vehicle will have the greatest force

3. A 400 kg trailer with a spring attached to it is travelling at a speed of 20 m/s. The trailer collides with a 200 kg cart going 40 m/s in a head-on collision. If the spring constant is 850 N/m, calculate the maximum compression of the spring.

1. A bullet moving at vo=1500[m/] hits a ballistic pendulum of mass M=2[kg] that hangs on a string of length 0.8[m]. The center of mass of the pendulum goes up a distance of 0.4 [m]. a. What is the angle 0 at that point? b. What is the mass m of the bullet? c. How much, in Joule, of the initial kinetic energy went into "Waste" (heat, sound, deformation).

Classical Mechanics. A block of mass m = 5.00-kg is moving to the right with a speed of v = 2.00 m/s on a horizontal, frictionless surface. The block encounters a relaxed (that is, neither compressed nor extended) spring with spring constant k = 2,000.00 N/m. a. What is the kinetic energy of the block before hitting the spring? b. What is the kinetic energy of the block when the spring is at maximum compression? c. How much energy is stored in the spring at maximum compression? d. How far does the spring compress at its maximum compression? e. If the spring converts its stored energy completely into motion of the block, what is the speed of the block after release from the spring? f. (For this part of the problem, the surface is not frictionless) Suppose the speed of the block after release from the spring is 1.5 m/s to the left, how much work (sign and magnitude) was done by non-conservative forces between the time when the initial velocity is 2.00 m/s and the time when the velocity =…

A mass with an initial velocity v slides and is ``caught'' by a spring oriented horizontally on a frictionless surface which is pushed back from its equilibrium position. Which of the following quantities are ``conserved'' (i.e., are the same before and after the mass is caught): a. The momentum of the mass b. The KE of the mass c. The PE of the mass d. Two of the above e. All three of the above f. NOTA/Need more information

1. If two particles have equal kinetic energies, are their momenta necessarily equal? Explain. 2. If two particles have equal momenta, are their kinetic energies necessarily equal? Explain. 3. An isolated system is initially at rest. Is it possible for parts of the system to be in motion at some later time? If so, explain how this might occur. 4. If two objects collide and one is initially at rest, is it possible for both to be at rest after the collision? Is it possible for one to be at rest after the collision? Explain. 5. Is it possible to have a collision in which all of the kinetic energy is lost? If so, cite an example. 6. Consider a perfectly inelastic collision between a car and a large truck. Which vehicle loses more kinetic energy as a result of the collision? 7. A piece of mud is thrown against a brick wall and sticks to the wall. What happens to the momentum of the mud? Is momentum conserved? Explain.

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4. In an elastic head-on collision, a 0.60 kg cart moving at 5.0 m/s [E] collides with a 0.80 kg cart moving at 2.0 m/s [W]. The collision is cushioned by a spring (k = 1,200 N/m). i. Determine the velocity of each cart after the collision. ii. Determine the maximum compression of the spring.

Before 20, 2.20P)After the collision is masses stick each other. There is a spring with force constant k between mass B and C (no friction between ground and masses). a) Calculate the speeds vl and v2 just after the collision. b) After collusion what will be the maximum compression of the spring. mwwwm m After mmwwwm

As shown in the figure below, m1=2 kg moves with velocity of 5 m/s on a frictionless surface, and collides and sticks with a stationary mass, m2=2.5 kg which is connected to a spring k= 1500 N/m. How far the spring will be compressed (in m). m, Before collision m2 mass-spring system- At maxim um v=0 m. MAM compression m,