Show Recommended textbook solutions Fundamentals of Physics10th EditionDavid Halliday, Jearl Walker, Robert Resnick 8,452 solutions Atkins Physical Chemistry10th EditionJulio de Paula, Peter Atkins 1,315 solutions Sears and Zemansky's University Physics14th EditionHugh D. Young, Roger A. Freedman 7,362 solutions
Physics for Scientists and Engineers with Modern Physics4th EditionDouglas C Giancoli 7,064 solutions Recommended textbook solutionsFundamentals of Physics10th EditionDavid Halliday, Jearl Walker, Robert Resnick 8,452 solutions Atkins Physical Chemistry10th EditionJulio de Paula, Peter Atkins 1,315 solutions Fundamentals of Physics8th EditionHalliday, Resnick, Walker 9,001 solutions University Physics with Modern Physics, Volume 1 (Chapters 1-20)2nd EditionGary Westfall, Wolfgang W. Bauer 2,931 solutions 24) Whether a truck comes to a stop by crashing into a haystack or a brickwall, the impulse is1.A) greater with the haystack.2.B) greater with the brick wall.3.C) both the same Diff: 2Topic: Impulse Changes Momentum25) When a boxer moves into an oncoming punch, the force experienced is Get answer to your question and much more Diff: 2Topic: Impulse Changes Momentum26) When a boxer is moving away from a punch, the force experienced isreduced because Get answer to your question and much more Diff: 2Topic: Impulse Changes Momentum27) A cannon recoils while firing a cannonball. The speed of the cannon’srecoil is relatively small because the Get answer to your question and much more Topic: Impulse Changes Momentum28) A tiny gun made of a strong but very light material fires a bullet moremassive than the gun itself. For such a weapon1.A) the target would be safer than the shooter.2.B) recoil problems would be lessened.3.C) conservation of energy would not hold.4.D) conservation of momentum would not hold.5.E) both conservation of energy and momentum would not hold.Answer: A Diff: 2Topic: Impulse Changes Momentum29) A heavy truck and a small car rolling down a hill at the same speed areforced to stop in the same amount of time. Compared with the force that stopsthe car, the force needed to stop the truck is Get answer to your question and much more Diff: 2Topic: Impulse Changes Momentum30) The force that accelerates a rocket in outer space is exerted on the rocketby the Get answer to your question and much more Diff: 2Topic: Impulse Changes Momentum31) The average braking force of a 1000-kg car moving at 10 m/s braking to astop in 5 s is Get answer to your question and much more Diff: 2Topic: Impulse Changes Momentum32) A falling 1-N apple hits the ground with a force of about1.A) 1 N.2.B) 2 N.3.C) 4 N.4.D) 10 N.5.E) need more informationAnswer: E Diff: 3Topic: Impulse Changes Momentum33) A bungee jumper attains a speed of 30 m/s just as the bungee cord beginsto stretch. If the period of stretch is 2 s while coming to a halt, the jumper’saverage deceleration is about.... Get answer to your question and much more Get answer to your question and much more Diff: 3Topic: Impulse Changes Momentum Upload your study docs or become a Course Hero member to access this document Upload your study docs or become a Course Hero member to access this document End of preview. Want to read all 34 pages? Upload your study docs or become a Course Hero member to access this document Is the impulse the same for hitting a wall or a haystack and coming to a stop?When hitting either the wall or the haystack and coming to a stop, the momentum is decreased by the same impulse. The same impulse does not mean the same amount of force or the same amount of time. It means the same product of force and time. To keep the force small, we extend the time.
Why does a car receive a lower impact when hitting a haystack instead of a concrete wall?By hitting the haystack instead of the wall, you extend the contact time—the time during which your momentum is brought to zero. A longer contact time reduces the force and decreases the resulting deceleration. For example, if the time is extended 100 times, the force of impact is reduced 100 times.
When 2 vehicles collide momentum is conserved?When a collision occurs in an isolated system, the total momentum of the system of objects is conserved. Provided that there are no net external forces acting upon the objects, the momentum of all objects before the collision equals the momentum of all objects after the collision.
Is it correct to say that impulse is equal to?The impulse-momentum relationship states that the impulse delivered by the net force acting on an object is equal to the change in the momentum of that object.
|
Whether a truck comes to a stop by crashing into a haystack or a brick wall, the stopping force is
Postagens relacionadas
direito autoral © 2024 pt.wiewird Inc.
