Problem 9.14 MasteringPhysics 14 of 22 Problem 9.14 A man standing on very slick

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Problem 9.14 MasteringPhysics 14 of 22 Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Continue
Problem 9.14 MasteringPhysics 14 of 22 Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Continue
Problem 9.14 MasteringPhysics 14 of 22 Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Continue Problem 9.14 MasteringPhysics Problem 9.14 MasteringPhysics Problem 9.14 MasteringPhysics Problem 9.14 MasteringPhysics 14 of 22 Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Continue Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Continue Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Problem 9.14 Problem 9.14 A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70kg , and the mass of the bullet is 10g . Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up Part A If the bullet leaves the muzzle at a speed of 500m/s , what is the final speed of the man? Express your answer using two significant figures. vfinal =    m/s   SubmitGive Up vfinal =    m/s   vfinal =    m/s   SubmitGive Up Continue vfinal =    m/s  

Explanation / Answer

m1 v1 = m2 v2
10 x 500 = 70x 1000 x v2
Final speed of the man : v2 = 10 x 500/70x1000 = 0.0714 m/s
asumption: bullet weight is negligible compared to the man+rifle

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