Two objects, A and B, both with a mass of 2 kg, collide. The velocities before the collision are (3) (4) ViA =15i + 30j m/s, ViB =- 10i + 5j m/s, After the collision, object A has a final velocity VJA = -5i + 20j m/s. (5) What is (a) the final velocity of B? and (b) the change in the total kinetic energy of the system (including sign)?

Two objects, A and B, both with a mass of 2 kg, collide. The velocities before the collision are (3) (4) ViA =15i + 30j m/s, ViB =- 10i + 5j m/s, After the collision, object A has a final velocity VJA = -5i + 20j m/s. (5) What is (a) the final velocity of B? and (b) the change in the total kinetic energy of the system (including sign)?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

In the figure, projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus. The alpha particle is scattered at angle 0₁-59.6° and the oxygen nucleus recoils with speed 1.60 x 105 m/s and at angle 02 - 54.0°. In atomic mass units, the mass of the alpha particle is 4.00 u and the mass of the oxygen nucleus is 16.0 u. What are the (a) final and (b) initial speeds of the alpha particle? (a) Number 601000 (b) Number i 10367500 my Units Units m/s m/s m₂ 0₂
An asteroid breaks apart into two pieces in space. The first piece of the asteroid, which has a mass of one-eighth the initial asteroid, moves to the right at a speed of 30 m/s. What is the velocity of the second asteroid? O 0.2 m/s O 4 m/s O 30 m/s O 9 m/s
A 0.05 kg ball is thrown straight up into the air with an initial speed of 20 m/s. Find the momentum of the ball at the following locations. (a) at its maximum height kg-m/s (b) halfway to its maximum height kg-m/s
(a) What is the momentum in kg · m/s of a garbage truck that is 1.30 ✕ 104 kg and is moving at 33.0 m/s? (Enter a number.) (b) At what speed in m/s would an 8.00 kg trash can have the same momentum as the truck? (Enter a number.)
An object of mass 3M, moving in the +x direction at speed vo, breaks into two pieces of mass M and 2M as shown in the figure. V = ? 2M 3M If 0 = 68.0° and 02 = 21.0°, determine the final velocities vi and vz of the resulting pieces in terms of vo. M , = ? U2 =
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 relative to the block, the block, with the bullet in it, is traveling at speed uf. (Figure 1) Figure Before collision mb mw 1 of 1 After collision ▼ Part A Which of the following best describes this collision? View Available Hint(s) Operfectly elastic O partially inelastic Operfectly inelastic Submit Part B Which of the following quantities, if any, are conserved during this collision? ►View Available Hint(s) Okinetic energy only O momentum only Okinetic energy and momentum Oneither momentum nor kinetic energy Submit P Pearson
Consider two hockey pucks, each with mass 1.25 kg, on frictionless ice. Puck A is initially moving due east at 2.35 m/s towards puck B, which is initially stationary. The pucks collide head on. After the collision, puck B moves east with a speed of 1.45 m/s. (a) What is puck A's speed (in m/s) after collision? What direction is it moving in? (b) How much kinetic energy (in Joules) is lost from the system during the collision? (c) If the collision were completely elastic, what would the final speed and direction of each puck be?
A penguin of mass 6kg swims with a velocity of 1.79 m/s in the +x direction. The penguin then glides onto a small chunk of ice of mass 2000kg initially at rest. What is the final velocity of the ice and the penguin together?
Particle 1 moving at a speed of 1.8 m/s undergoes a non linear collision with identical particle 2 initially at rest. After the collision, particle 2 moves at speed 1.0 m/s, at an angle of θ2 = 50°. (a) What is the magnitude of the velocity of particle 1 after the collision?________m/s(b) What is its direction?_______°
During a fireworks display, a 0.280-kg bottle rocket approaches the top of its trajectory and explodes into two pieces as in the figure. The first piece (Piece 1) has mass 0.180 kg and the second piece (Piece 2) has mass 0.100 kg. Immediately after the explosion, the first piece is observed traveling to the left at a speed of4.30 m/sand the second piece is observed traveling at an angleθ = 39.0°above the horizon at a speed of 17.0 m/s. Determine the components of the bottle rocket's velocity immediately before the explosion. Vxi = m/s Vyi = m/s
A 2.5 kg block, initially moving due east at 6 m/s, is acted upon by an impulse having magnitude 15 Ns and direction due west. What is the final total momentum of the system?
An inelastic collision occurs between a particle of mass 1.5 kg moving with an initial velocity of v = (−2ˆi − 1.3ˆj + 0.7kˆ) m/s and another particle of mass 0.8 kg that has an initial velocity of v = (5.6ˆi + 0.5ˆj + 4.3kˆ) m/s. What is the final velocity of the particles in unit vector notation?