F(N) 4F x (m) The force-position graph of an object with zero initial momentum and moving in a frictionless horizontal plane is as shown in the figure. The momentum of the body at position x is P1, pa at position 3x. Which of the following is the p1/p2 ratio?

F(N) 4F x (m) The force-position graph of an object with zero initial momentum and moving in a frictionless horizontal plane is as shown in the figure. The momentum of the body at position x is P1, pa at position 3x. Which of the following is the p1/p2 ratio?

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Description: a) V6O B)V3O NS)O D)3Ο ΤΟ) 2ν6 F (N)4FFx (m)The force-position graph of an object with zero initial momentum and moving in africtionless horizontal plane is as shown in the figure. The momentum of the body atposition x is P1, pa at position 3x. Whic

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 22P: If a rainstorm drops 1 cm of rain over an area of 10km2 in the period of 1 hour, what is the...

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In research in cardiology and exercise physiology, it is often important to know the mass of blood pumped by a persons heart in one stroke. This information can be obtained by means of a ballistocardiograph. The instrument works as follows. The subject lies on a horizontal pallet floating on a film of air. Friction on the pallet is negligible. Initially, the momentum of the system is zero. When the heart beats, it expels a mass m of blood into the aorta with speed , and the body and platform move in the opposite direction with speed V The blood velocity can be determined independently (e.g., by observing the Doppler shift of ultrasound). Assume that it is 50.0 cm/s in one typical trial. The mass of the subject plus the pallet is 54.0 kg. The pallet moves 6.00 10-5 m in 0.160 s after one heartbeat. Calculate the mass of blood that leaves the heart. Assume that the mass of blood is negligible compared with the total mass of the person. (This simplified example illustrates the principle of ballistocardiography, but in practice a more sophisticated model of heart function is used.)