There are 2 problems please answer both myct/ Manmistat,ed. Heu @M mastering ass
ID: 1656065 • Letter: T
Question
There are 2 problems please answer both myct/ Manmistat,ed. Heu @M mastering assignmentt5522079 Chater& AsinmentProblem 4 58 Problem 4.58 Part A The two masses shown n the Spure ae each ntaly 1 8 m above the ground, and the massiess trcioniess puley s 4.8 mm above te ground What maximum height does the lighter otject reach ather the system is released? Hint Frst determine the acceleration of the lighter mass and then its velocity at the moment the heavier This is its launch speed Assume the mass doesn't ht the pulley ignore the mass of the cond Express your answer using two significant figures 48m DOLL F12 Priscr nsers Dlete 5 7 8 9Explanation / Answer
use energy conservation to find speed of blocks just before it hits the ground,
PEi + KEi = PEf + KEf
0 + 0 = (-3.6 x 9.8 x 1.8) + (2.2 x 9.8 x 1.8) + (2.2 + 3.6)v^2 /2
24.7 = 2.9 v^2
v = 2.92 m/s
after lighter mass will be in free fall,
so h = v0^2 / 2g = 2.92^2 / (2 x 9.8) = 0.43 m
heght from ground = 1.8 + 1.8 + 0.43
= 4.03 m
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mB g - T = mB a
T - mA g sin(theta) = mA a
adding the equations,
a = (mB - mA sin(theta)) g / (mA + mB)
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