Two 465g blocks of wood are 2 m apart on a frictionless table. A 15g bullet is fired at 419 m/s toward the blocks. it passes all the way through the first block then embeds itself in the second block. The speed of the first book in merely afterwards is 7 m/s. What is the speed of the second block after the bullet stops in it? Answer to 3 sig figs.

Two 465g blocks of wood are 2 m apart on a frictionless table. A 15g bullet is fired at 419 m/s toward the blocks. it passes all the way through the first block then embeds itself in the second block. The speed of the first book in merely afterwards is 7 m/s. What is the speed of the second block after the bullet stops in it? Answer to 3 sig figs.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 31P

See similar textbooks

Similar questions

An atomic nucleus initially moving at 375 m/s emits an alpha particle in the direction of its velocity, and the remaining nucleus slows to 250 m/s . If the alpha particle has a mass of 4.0 u and the original nucleus has a mass of 222 u, what speed does the alpha particle have when it is emitted?
"A very heavy object moving with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?"
Two astronauts on opposite ends of a spaceship are comparing lunches. one has an apple, the other has an orange. They decide to trade. Astronaut 1 tosses the .13kg apple towards astronaut 2 with a speed of 1.11 m/s. The .16kg orange is tossed from astronaut 2 to astronaut 1 with a speed of 1.21 m/s. Unfortunately the fruits collide, sending the orange off with a speed of 1.16 m/s at an angle of 42degrees. find the speed and direction of the apple, assuming an elastic collision. Please solve using conservation of momentum.
Canadian nuclear reactors use heavy water moderators in which elastic collisions occur between the neutrons and deuterons of mass 2.0 u. Part A What is the speed of a neutron, expressed as a fraction of its original speed, after a head-on, elastic collision with a deuteron which is initially at rest? Express your answer using three decimal places. ?
If a particle of mass 100 g initially had a speed of 100 cm/s, what would be its approximate kinetic energy at the end of its 10 cm fall? The correct answer is 15 x 10⁵ ergs
The mass of a regulation tennis ball is 57 g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 30 ms.(This number can also vary, depending on the racket and swing.) We shall assume a 30.0 ms contact time. One of the fastest-known served tennis balls was served by “Big Bill” Tilden in 1931, and its speed was measured to be 73 m/s. Suppose that the positive direction of the x-axis is along the direction of motion of the ball after Big Bill's hit. What is the x-component of the force exerted by Big Bill on the tennis ball in his record serve? If Big Bill's opponent returned his serve with a speed of 55 m/s what is the x-component of the force he exerted on the ball, assuming only horizontal motion?
One of the waste products of a nuclear reactor is plutonium-239 (239Pu). This nucleus is radioactive and decays by splitting into a helium-4 nucleus and a uranium-235 nucleus (4He+ 235U), the latter of which is also radioactive and will itself decay some time later. The energy emitted in the plutonium decay is 8.40×10 –13J and is entirely converted to kinetic energy of the helium and uranium nuclei. The mass of the helium nucleus is 6.68×10 –27kg, while that of the uranium is 3.92×10 –25kg (note that the ratio of the masses is 4 to 235). (a) Calculate the velocities of the two nuclei, assuming the plutonium nucleus is originally at rest. (b) How much kinetic energy does each nucleus carry away? Note that the data given here are accurate to three digits only.
"A very heavy object moving with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?"
Arailroad freight car of mass 2.84x 10ª kg collides with a stationary caboose car. They couple together, and 36.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose. Number 10200 Units kg
Two carts of equal mass are on a horizontal, frictionless air track. Initially cart A is moving toward stationary cart B with a speed of vA. The carts undergo an inelastic collision, and after the collision the total kinetic energy of the two carts is one-half their initial total kinetic energy before the collision. What is the speed of each cart after the collision?
u = 1.66 x 10-27 kg; v = 1.050x107 m/s. (in J) A uranium-238 nucleus undergoes a radioactive decay, The masses are approximately 238, 234 and 4 u, where u = the atomic mass unit. The U nucleus is initially at rest. Suppose the He nucleus has speed v. Then what is the kinetic energy of the Th nucleus? Parameters: A: 4.004x10-15 B: 5.006x10-15 C: 6.257x10-15 OC: 6.257x10-15 Submit Answer Tries 0/12 238 U Post Discussion → 234Th + 4He. D: 7.821x10-15 D: 7.821x10-15 OE: 9.776x10-15 F: 1.222x10-14 G: 1.528x10-14 H: 1.909×10-14 Send Feedback
Biomechanics. The mass of a regulation tennis ball is 57 g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 30 ms. (This number can also vary, depending on the racket and swing.) We shall assume a 30.0 ms contact time. One of the fastest-known served tennis balls was served by “Big Bill” Tilden in 1931, and its speed was measured to be 73 m/s. (a) What impulse and what total force did Big Bill exert on the tennis ball in his record serve? (b) If Big Bill’s opponent returned his serve with a speed of 55 m/s, what total force and what impulse did he exert on the ball, assuming only horizontal motion?