session.masteringphysics.com Course Home MasteringPhysics: Chapter 4; Assignment

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session.masteringphysics.com Course Home MasteringPhysics: Chapter 4; Assignment 3 Physics question I Chegg.com Problem 4.52- Copy « previous | 6 of 9 next» Problem 4.52 Copy Part A Mass mA rests on a smooth horizontal surface, vertically. hangs f m 12.0 kg and mB-8.0 kg in the figure (Figure 1), determine the magnitude of the acceleration of each block. Enter your answers numerically separated by comma. Express your answers using two significant figures. undo Submit My Answers Give Up Continue Fire1of 1 Pn nlB

Explanation / Answer

Tension T = mA mB * g / (mA + mB)

= 12 * 8 * 9.8 / (12 + 8) = 47 N

For mA, T = mA * a

a = T /  mA

aA = 47 / 12 = 3.92 m/s2

For mB, mB * a = mB * g - T

a = (mB * g - T) /  mB

aB = (8 * 9.8 - 47) / 8 = 3.92 m/s2

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