secure https://session masteringphysics. Spring 2017 PHYS191 20997 LO4 Mastering

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secure https://session masteringphysics. Spring 2017 PHYS191 20997 LO4 MasteringPhysics: HW-CHS-Google Chrome om myct item View offset next& assignment ProblemID 75879284 Item 3 Item 3 previous 13of Part A A 135 kg (including all the contents rocket has an engine that produces a constant vertical foroe (the thrust) Find the acceleration of the rocket of 1970 N.Inside this rocket, a 17.8-N electricalpower supply rests on the floor. m/s My Answers Part B When it has reached an attude of 120 m. how hard does the foor push on the power supply? 4Hnt start with a fee ody dagram to the power supply) C My Answers Continue Submit

Explanation / Answer

a) a = Fnet/m = (T - mg)/m = (1970 - 135*9.8)/135 = 4.79 m/s²

b) Fp = W*(a+g)/g = 17.8*(4.79+9.8)/ 9.8 = 26.5 N

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