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Question 9 (1 point) A mass m1=1.5 kg rests on a 30 degree ramp with a coefficient of kinetic friction 0.40. Mass m1 is tied
Question 11 (1 point) Two masses, one is m1-2.0 kg and another one m2 = 3.0 kg are connected by a thin string running over ashow work and round 0.0001
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Answer #1

FBD of m2

m2 a = m2 g - T

T = m2 g - m2 a... (i)

FBD of m1

m1 a = T - m1 g sin x - u mg cos x

from (i)

m1 a = m2 g - m2 a - m1 g sin x - u m1 g cos x

1.5 * 2.94 = 9.8 m - 2.94 m - 1.5* 9. 8* sin 40 - 0.4* 1.5* 9.8* cos 30

m = 2.763 kg

========

Plz post other problems seperately

Comment in case any doubt, will reply for sure.. Goodluck

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