d (meters) 25 20 15 10 58 Biker 2 the walker 4 the biker Runner the runner 6 Walker A set of identical triplets with the same mass bike, run, and walk in a park. Which one has the least momentum? 8 there's not enough information to determine t (seconds)

d (meters) 25 20 15 10 58 Biker 2 the walker 4 the biker Runner the runner 6 Walker A set of identical triplets with the same mass bike, run, and walk in a park. Which one has the least momentum? 8 there's not enough information to determine t (seconds)

Name: A set of identical triplets with the same mass pike, run, and run in t
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Description: A set of identical triplets with the same mass pike, run, and run in the park. Which one is the least momentum? d (meters)25201510LOBiker24O the walkerthe bikerRunnerthe runner6WalkerA set of identical triplets with the same massbike, run, and walk i

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter8: Linear Momentum And Collisions

Section: Chapter Questions

Problem 46PE: Confirm that the results of the example Example 8.7 do conserve momentum in both the x- and y...

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Confirm that the results of the example Example 8.7 do conserve momentum in both the x- and y -directions.
A car and a large truck traveling at the same speed collide head-on and stick together. Which vehicle undergoes the larger change in the magnitude of its momentum? (a) the car (b) the truck (c) the change in the magnitude of momentum is the same for both (d) impossible to determine without more information.
Starting with equations m1v1=m1v1cos1+m2v2cos2 and 0=m1v1cos1+m2v2sin2 for conservation of momentum in the x- and y -directions and assuming that one object is originally stationary, prove that for an elastic collision of two objects of equal masses, 12mv12=12mv22+mv1v2cos(12) as discussed in the text.
Check Your Understanding Even if there were some friction on the ice, it is still possible to use conservation of momentum to solve this problem, but you would need to imposed an additional condition on the problem. What is that additional condition?
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.)
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If a rainstorm drops 1 cm of rain over an area of 10km2 in the period of 1 hour, what is the momentum of the rain that falls in one second? Assume the terminal velocity of a raindrop is 10 m/s.
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