Part A Express your answer to one significant figure and include the appropriate
ID: 2101828 • Letter: P
Question
Part A Express your answer to one significant figure and include the appropriate units. Part B Express your answer to two significant figures and include the appropriate units. Blocks with masses of 2 , 3 , and 6 are lined up in a row on a frictionless table. All three are pushed forward by a 52 force applied to the 2 block. Part A How much force does the 3 block exert on the 6 block? Express your answer to one significant figure and include the appropriate units. = Part B How much force does the 3 block exert on the 2 block? Express your answer to two significant figures and include the appropriate units. =Explanation / Answer
m1 = 2 kg
m2 = 3 kg
m3 = 6kg
F = 52 N
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From newtons second law
a = F / (m1 + m2 + m3)
= 52 / 11 kg
= 4.73 m/s2
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a)
F = m3 a
= (6 kg )(4.73 m/s2)
= 28.38 N
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b)
F = (m2 + m3 ) a
= (9 kg) 4.73
= 42.57 N