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6. A 5-kg stone is released from rest and falls towards the Earth. After 2.0 seconds, the magnitude of its linear momentum p (in units of kg-m/s) is: A) 98 B) 73.5 C) 39 D) 24 E) -98

6. A 5-kg stone is released from rest and falls towards the Earth. After 2.0 seconds, the magnitude of its linear momentum p (in units of kg-m/s) is: A) 98 B) 73.5 C) 39 D) 24 E) -98

Physics for Scientists and Engineers, Technology Update (No access codes included)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 9.91AP: A 2.00-g particle moving at 8.00 m/s makes a perfectly elastic head-on collision with a resting...
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6. A 5-kg stone is released from rest and falls towards the Earth. After 2.0 seconds, the magnitude of its linear momentum p (in units of kg-m/s) is: A) 98 B) 73.5 C) 39 D) 24 E) -98 7. A 90-kg man stands in an elevator that is moving up at a constant speed of 5.0 m/s. The force exerted by him on the floor is closest to: A) zero B) 90 N C) 880 N D) 450 N E) 49 N 8. For an inelastic collision between two objects that comprise an isolated system, which of the following is true? A) the momentum of each object is conserved B) the kinetic energy of each object is conserved C) the momentum of the system is conserved but the kinetic energy of the system is not conserved D) both the momentum and the kinetic energy of the system are conserved E) the kinetic energy of the system is conserved, but the momentum of the system is not conserved 9. A 2-kg particle is attached to the end of an ideal spring which is horizontal. The spring constant is 200 N/m. You pull on the mass so as to extend the spring a distance of 0.5 m from its equilibrium position. The work done by you on the spring is: A) 12.5 J B) -12.5 J C) 25 J D) -25 J E) none of the above
Transcribed Image Text:6. A 5-kg stone is released from rest and falls towards the Earth. After 2.0 seconds, the magnitude of its linear momentum p (in units of kg-m/s) is: A) 98 B) 73.5 C) 39 D) 24 E) -98 7. A 90-kg man stands in an elevator that is moving up at a constant speed of 5.0 m/s. The force exerted by him on the floor is closest to: A) zero B) 90 N C) 880 N D) 450 N E) 49 N 8. For an inelastic collision between two objects that comprise an isolated system, which of the following is true? A) the momentum of each object is conserved B) the kinetic energy of each object is conserved C) the momentum of the system is conserved but the kinetic energy of the system is not conserved D) both the momentum and the kinetic energy of the system are conserved E) the kinetic energy of the system is conserved, but the momentum of the system is not conserved 9. A 2-kg particle is attached to the end of an ideal spring which is horizontal. The spring constant is 200 N/m. You pull on the mass so as to extend the spring a distance of 0.5 m from its equilibrium position. The work done by you on the spring is: A) 12.5 J B) -12.5 J C) 25 J D) -25 J E) none of the above
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