An object is moving south at a speed of 6.8 m/s and with a mass of 27 kg. A second object of mass 18 kg and initially moving north at 1.2 m/s, collides with the first object, causing the second object to turn around and move southward at a speed of 4.2 m/s. Determine the system's change in kinetic energy. AK = J

An object is moving south at a speed of 6.8 m/s and with a mass of 27 kg. A second object of mass 18 kg and initially moving north at 1.2 m/s, collides with the first object, causing the second object to turn around and move southward at a speed of 4.2 m/s. Determine the system's change in kinetic energy. AK = J

Name: An object is moving south at a speed of 6.8 m/s and with a mass of 27
Uploaded: 2024-03-20T06:57:37.000Z
Channel: Bartleby
Description: An object is moving south at a speed of 6.8 m/s and with a mass of 27kg. A second object of mass 18 kg and initially moving north at 1.2m/s, collides with the first object, causing the second object to turnaround and move southward at a speed of 4.2

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

The figure shows particles 1 and 2, each of mass m, attached to the ends of a rigid massless rod of length L₁ + L₂. with L₁ -0.79 m and L2 -3.3 m. The rod is held horizontally on the fulcrum and then released. What are the magnitudes of the initial accelerations of (a) particle 1 and (b) particle 2? (a) Number (b) Number i Units Units 14 -Lg-
The figure below shows a bullet of mass 230g traveling horizontally towards the east with a speed of 415m/s, which strikes a block of mass 7.5kg that is initially at rest on a frictionless table. After striking the block, the bullet is embedded in the block and they begin to move as one unit. A. What is the magnitude (in m/s) and direction of the velocity of the block/bullet unit immediately after the impact? B. What is the magnitude (in N * s) and direction of the of the impulse of the block on the bullet? C. What is the magnitude ( in N *s) and direction of the impulse of the bullet and the block?
Two objects are on a collision course. Object #1 has a mass of 4.6 kg and an initial velocity of 7.3 m/s i. Object #2 has a mass of 7.7 kg and an initial velocity of --11.2 m/s i. After colliding, Object #1 has a velocity of -2 m/s i. What is the change in kinetic energy of the system?
A 1.0 kg cart travelling at 2.0 m/s [east] collides with a stationary cart, of mass 3.0 kg. The two carts stick together and move off at a constant velocity. Assume that friction is negligible. What is the velocity of the two (connect) carts immediately after the collision? Question 1 options: 0.67 m/s [east] 0.5 m/s [east] 3.0 m/s [east] 6.0 m/s [east] 2.0 m/s [east]
A simple pendelum made of a pendelum bob of mass, m1=.0250 kg, and a string of length, l= .720m, is pulled back to an angle of theta = 35 degrees and then released from rest. At the bottom of the swing m1 and m2=.0200 kg collide and stick together. a. What is the speed of m1 immediately before it hits m2? b. What is the speed of m2 immediately after the collision? c. How high above the bottom of the swing do the two masses rise?
A 75.0 kg ice skater moving at 10.5 m/s crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 5.25 m/s. If the impact time is 0.100 s, what are the magnitudes of the average forces experienced by each skater during the collision? Force experienced by moving skater N Force experienced by stationary skater N Suppose the average force a skater can experience without breaking a bone is 4500 N. Does a bone break? Yes or NO
A BB gun is fired at a cardboard box of mass m2 = 0.75 kg on a frictionless surface. The BB has a mass of m1 = 0.012 kg and travels at a velocity of v1 = 98 m/s. It is observed that the box is moving at a velocity of v2 = 0.26 m/s after the BB passes through it. PART A) what is the BB's final velocity, vf, in meters per second PART B) if the BB doesnt exit the box, what will the final velocity of the box be in meters per second?
Your mass is 63.2 kg, and the sled s mass is 21.7 kg. You start at rest, and then you jump off the sled, after which the empty sled is traveling at a speed of 4.27 m/s. What will be your speed on the ice after jumping off? 1.47 m/s 0.88 m/s 2.06 m/s 1.77 m/s
A block with mass m and a velocity v10 collides with a block M at rest. At some time later after the collision the two masses have velocities v1 and v2. No other information is given about the surface on which the blocks are sliding. Which of the following is true? The system consists of the two blocks. a) the mechanical energy of the system is conserved, but the momentum of the system is not b) the momentum of the system is conserved, but the mechanical energy of the system is not conserved c) neither the momentum nor the mechanical energy of the system need be conserved
Alex Morgan, one of America's best forwards, kicks a 450. g soccer ball that was moving towards her at a speed of 12.0m/s, the impact caused the ball to leave her foot with a velocity of 20.0 m/s in the opposite direction. a. If the impact lasted for 0.250s, what force (magnitude and direction) did Alex exert on the soccer ball? b. What is one thing that she could do to make the soccer ball have a larger change in momentum?
1. For the purposes of this problem make sure you remember that the positive x direction is to the right. A 0.500 kg crash cart was rolling to the left at &; = -1.00 m/s. It was hit with a rubber hammer. Just afterwards the cart was rolling to the right with Uf = +2.50 m/s. The hammer was in contact with the cart for only 5.00 milliseconds. Remember to specify the direction in your answers as either postive or negative. (a) What is the change in momentum, Ap, for the cart? (b) What is the Impulse, I, applied by the hammer to the cart? (c) What is the average force, F, applied by the hammer to the cart? +x X+ Vf +X
A railroad freight car of mass 2.84 x 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 i Units