The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A.30 caliber bullet has mass 7.20×103 kg and a speed of 601 m/s relative to the muzzle when fired from a rifle that has mass 3.10 kg. The loosely held rifle recoils at a speed of 2.05 m/s relative to the earth. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Recoil of a rifle. Part A Find the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifle. Express your answer in kilogram meters per second. p= D VE ΑΣΦ ?

The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A.30 caliber bullet has mass 7.20×103 kg and a speed of 601 m/s relative to the muzzle when fired from a rifle that has mass 3.10 kg. The loosely held rifle recoils at a speed of 2.05 m/s relative to the earth. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Recoil of a rifle. Part A Find the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifle. Express your answer in kilogram meters per second. p= D VE ΑΣΦ ?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 67PQ: Assume the pucks in Figure P11.66 stick together after theircollision at the origin. Puck 2 has four...

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Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height h/2 as shown in Figure P11.40. They are released from rest simultaneously and collide elastically in the trough of the track. If m2 = 4 m1, m1 = 0.045 kg, and h = 0.65 m, what is the velocity of each ball after the collision?
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Two skateboarders, with masses m1 = 75.0 kg and m2 = 65.0 kg, simultaneously leave the opposite sides of a frictionless half-pipe at height h = 4.00 m as shown in Figure P11.49. Assume the skateboarders undergo a completely elastic head-on collision on the horizontal segment of the half-pipe. Treating the skateboarders as particles and assuming they dont fall off their skateboards, what is the height reached by each skateboarder after the collision? FIGURE P11.49
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Assume the pucks in Figure P11.66 stick together after theircollision at the origin. Puck 2 has four times the mass of puck 1 (m2 = 4m1). Initially, puck 1s speed is three times puck 2s speed (v1i = 3v2i), puck 1s position is r1i=x1ii, and puck 2s position is r2i=y2ij. a. Find an expression for their velocity after the collision in terms of puck 1s initial velocity. b. What is the fraction Kf/Ki that remains in the system?
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