WiNdowHelp 54% Sun 5:38:23 PM MasteringPhysics: HW11 Secure https://session.mast

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WiNdowHelp 54% Sun 5:38:23 PM MasteringPhysics: HW11 Secure https://session.masteringphysics.com/myct/itemView?assignmentProblemID- 877947508offset prev HW11 Problem 11.14 previous | 1 of 5 next Problem 11.14 Part A 4500 kg open train car is rolling on frictionless rails at 27 m/s when it starts pouring rain. Rain falls vertically. A few minutes later, the car's speed What mass of water has collected in the car? Express your answer to two significant figures and include the appropriate units. is 24 m/s. 1195.31 kg Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining Continue

Explanation / Answer

momentum conservation

Initial = Final

Mu = M"v

{M" = M+m}

4500 x 27 = (4500 + m) x 24

5062.5 = 4500 + m

m = 562.5 Kg (Answer)

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