007 (part 2 of 2) 10.0 points This print-out should have 13 questions. Multiple-

Question

007 (part 2 of 2) 10.0 points This print-out should have 13 questions. Multiple-choice questions may continue on If a 1050 N man holds the rifle firmly against the next column or page find all choices his shoulder, find the recoil speed of man and before answering. rifle. The answers to problems 6 ,7 should beAnswer in units of m/s. positive because they ask for speed, not ve- locity. For problems 10, lluse Eq 6.14 in your textbook 008 (part 1 of 2) 10.0 points A 67.1 kg ice skater moving to the right with a velocity of 2.15 m/s throws a 0.136 kg snow- ball to the right with a velocity of 32.2 m/s 001 (part 1 of 4) 10.0 points Calculate the magnitude of the linear momen-relative to the ground tum for each of the following cases: What is the velocity of the ice skater after throwing the snowbali? Disregard the friction A proton with mass 1,67 x 10 kg moving Answer in units of kg.m/s with a speed of 4.5 x 10% m/s. between the skates and the ice. Answer in units of m/s. 002 (part 2 of 4) 10.0 points 009 (part 2 of 2) 10.0 points A 14.8 g bullet moving with a speed ofA second skater initially at rest with a mass 312 m/s. of 62.7 kg catches the snowball. Answer in units of kg m/s What is the velocity of the second skater after catching the snowball in a perfectly in- elastic collision? 003 (part 3 of 4) 10.0 points Answer in units of m/s. A 79.9 kg sprin 14.9 m/s ter running with a speed of Answer in units of kg m/s. 010 (part 1 of 2) 10.0 points A(n) 66.4 g object moving to the right at 22.9 cm/s overtakes and collides elastically 004 (part 4 of 4) 10.0 points Earth (mass 5.98 x 1024 kg) moving with with a(n) 26.1 g object moving in the same an orbital sped equal to 30015.6 ms direction at 14.1106 cm/s. Answer in units of kg m/s. Find the velocity of the first object imme- . diately after the collision. 005 10.0 points Answer in units of cm/s High-speed stroboscopic photographs show that the head of a 208 g golf club is trav- eling at 25.3 m/s just before it strikes a 45.9g Find the velocity of the second object imme- golf ball at rest on a tee. After the collision, diately after the collision. the club head travels (in the same direction)Answer in units of cm/s. at 17.5 m/s 011 (part 2 of 2) 10.0 points Find the speed of the golf ball immediately 012 10.0 points A car with mass 1122 kg, moving at 35 m/s strikes a(n) 2062 kg car at rest. after impact. Answer in units of m/s. If the two cars stick together, with what speed do they move? 006 (part 1 of 2) 10.0 points A rifle with a weight of 43 N fires a 5.1 g bullet Answer in units of m/s. with a speed of 438 m/s The acceleration of gravity is 9.81 m/s Find the recoil speed of the rifle. Answer in units of m/s. 013 10.0 points A 2169 kg car moving enst at 9.62 m/s collides with a 3211 kg car moving north. The cars

Explanation / Answer

Momentum is given by:

P = mass*Velocity = m*V

Part 1

P = 1.67*10^-27*4.5*10^6 m/sec

P = 7.515*10^-21 kg-m/sec

Part 2

m = 14.8 gm = 14.8*10^-3 kg

P = 14.8*10^-3*312

P = 4.6176 kg-m/sec

Part 3

P = 79.9*14.9

P = 1190.51 kg-m/sec

Part 4

P = 5.98*10^24 kg*30015.6 m/sec

P = 1.79*10^29 kg-m/sec

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