

A 22.3-g bullet moving at 1 000 m/s is fired through a one-kg block of wood emerging at a speed of 100 m/s. What is the change in the kinetic energy of the bullet-block system as a result of the collision assuming the block is free to move?
A bullet of mass 12.5 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.12 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4.70 m/s. (a) Find the initial speed of the bullet. (b) How much kinetic energy is lost?
A bullet of mass 10.2 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.23 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 5.80 m/s. (a) Find the initial speed of the bullet. (b) How much kinetic energy is lost?
A 26.0-g bullet moving at 1 200 m/s is fired through a one-kg block of wood emerging at a speed of 200 m/s. What is the kinetic energy of the block that results from the collision if the block had not been moving prior to the collision and was free to move?
A 600 g bullet is fired with an initial velocity of 890 m/s and embeds into a 10 kg block that is initially at rest. Assume that there is enough friction so that the bullet-block system immediately begins moving after impact. What are the a) final velocity and b) final kinetic energy of the system? c) Is the kinetic energy of the system conserved?
A bullet of mass Mb is fired horizontally with speed Vi at a wooden block of mass Mw resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the block, with the bullet in it, is traveling at speed Vf . 1)Which of the following best describes this collision? a)perfectly elastic b)partially inelastic c)perfectly inelastic 2) Which of the following quantities, if any, are...
A 5.00-9 bullet moving with an initial speed of v. = 430 m/s is fired into and passes through a 1.00-kg block as shown in the figure below. The block, initially at rest on a frictionless, horizontal surface, is connected to a spring with force constant 910 N/m. The block moves d = 6.00 cm to the right after impact before being brought to rest by the spring. M (a) Find the speed at which the bullet emerges from the...
A 25 gram bullet is fired from a gun with a speed of 200 m/s. If the gun has a mass of 0.9 kg, what is the recoil speed of the gun? 1b 15 gram bullet traveling at 250m/s strikes a block of wood of mass 2.5 kg. With what velocity will the block and bullet move after the collision?
A 100 gram bullet is fired into a 5 kg block that is at rest on the edge of a 1.3 meter high table. The bullet becomes embedded in the block (perfectly inelastic) and the bullet/block combo leaves the table and lands a horizontal distance of 2.8 meters away. Assuming there to be no friction between the block and the table, calculate the initial velocity of the bullet before colliding with the block. och 25kg block bullet M = Ooing...
A bullet of mass m = 15 g is fired into a wooden block of mass M = 2.0 kg resting initially at the edge of a frictionless table of height h = 1.2 m. The bullet gets imbedded in the block, and after impact the block+bullet lands on the floor a horizontal distance d = 1.8 m from the bottom of the table. What was the initial speed of the bullet? A. 367 m/s B. 489 m/s C. 133...