20. A block with mass m, is released from rest on a frictionless track at a distance h, above the top ofa table. It then collides elastically with an object having mass m, that is initially at rest on the table.After block m, flies off the table, it travels a horizontal distance x. Assume that air resistance isnegligible. Which of the following statements must be true?a.From the time that the block m, is released until just before it hits the block m2, mechanicalenergy is conserved.b. During the collision of the two blocks, only linear momentum is conserved.Since mechanical energy is conserved after block m, recoils, it will return to its originalC.height.d. When block m, flies off the table, mechanical energy is conserved.If the collision between the two blocks was inelastic, the distance x would decrease.e.

Given: the collision between the m1 and m2 is elastic collision. x is range of the projectile motion…

Answered: 20. A block with mass m, is released…

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

A 12 kg block, initially moving to the right, collides with a stationary 18 kg block, causing the 18 kg to move off to the right. The collision is perfectly elastic. We may conclude that after the collision, the 12 kg block will stop. move to the right with less speed than it had before the collision. move to the right with the same speed that it had before the collision. move to the left with less speed than it had before the collision. move to the left with the same speed that it had before the collision.
A toy car with a mass of 128 g moves to the right with a speed of 0.810 m/s. A small child drops a 30.0-g piece of clay onto the car. The clay sticks to the car and the car continues to the right. What is the change in speed of the car? Consider the frictional force between the car and the ground to be negligible. -0.15 m/s
microblology textb. PHY166_onlıne Jab. Pinterest Word sdev E Reading li Constants An atomic nucleus at rest decays radioactively into an alpha particle and a different nucleus. Part A What will be the speed of this recoiling nucleus if the speed of the alpha particle is 2.2x105 m/s ? Assume the recoiling nucleus has a mass 57 times greater than that of the alpha particle. Express your answer to two significant figures and include the appropriate units. HÁ Vnucleus = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback Next > P Pearson Copyright © 2021 Pearson Education Inc. All rights reserved. I Terms of Use | Privacy Policy | Permisstons | Contact Us | V0 3:44 acer
1. A hose sprays water into a train car. The hose is fixed in place and directed along the tracks, and the train car can move along the tracks without friction. The hose sprays water at a fixed rate a ([a] =MT-1) and speed v; the mass of the empty car is M. If the train car starts empty and at rest at t = 0, what is its speed at time t?
Cray-Zee is speeding along at 26 m/s as she approaches the level section of track near the loading dock of the Whizzer roller coaster ride. A braking system abruptly brings the 392-kg car (rider mas included) to a speed of 3 m/s over a distance of 5.7 meters Determine the magnitude (positive answer) of the braking force applied to Cray-Zee's car. Answer: N
A dump truck is being filled with sand. The sand falls straight downward from rest from a height of 1.06 m above the truck bed, and the mass of sand that hits the truck per second is 62.4 kg/s. The truck is parked on the platform of a weight scale. By how much does the scale reading exceed the weight of the truck and sand? Number i Units
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?
A 4.0 kg ball is traveling at 11.9 m/s and strikes a wall. The ball bounces off the wall with a velocity of 4.2 m/s in the opposite direction. If the ball is in contact with the wall for 0.10 seconds, then the magnitude of the average force on the ball during contact is? Enter only a numerical answer. Do not include units in the answer box, else your response will be counted as incorrect.
9. A 1200 kg car drives at an initial velocity vo = 45 m/s along a highway. At t = 0, the driver releases the gas, and the car slows to a stop due to a drag force given by Fdrag = -b v, where b = 15 kg/s³. Derive a function for the car's velocity as a function of time and solve it for the car's velocity at 10, 20, and 30 s.
A 10 g rifle bullet is fired onto a 2 kg block of wood hanging at rest from a string attached to the ceiling. The bullet embeds onto the wood which is observed to rise a maximum height of 0.25 m. The initial velocity of the bullet is about O Vo a. 222 m/s O b. 2.21 m/s O c. 4.92 m/s O d. 444 m/s B 0 8 B
A 67.9 g block hits a 140 g block initially at rest on a horizontal surface. After impact, they stick together and slide 9.22 m before coming to rest. The acceleration of gravity is 9.8 m/s2. If the coefficient of friction between blocks and surface is 0.34, what was the speed of the first block immediately before impact?
2. A 60kg skateboarder is initially at rest on top of a 8kg skateboard. The skateboarder then steps forward off the skateboard with a velocity of 0.5 m/s forward. Determine the velocity obtained by the skateboard itself.

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS