Two wooden blocks with different masses are at rest, stacked on a table. The top
ID: 1641478 • Letter: T
Question
Two wooden blocks with different masses are at rest, stacked on a table. The top block is labeled 1, and the bottom block is labeled 2. Rank the magnitude of the net force on the bottom block (2). Explain your reasoning. Various similar boxes are being pushed for 10 m across a floor by a net horizontal force is shown below. The mass of the boxes and the net horizontal force for each case are given in the indicated figure. All boxes have the same initial velocity of 10 m/s to the right. Rank the acceleration of the boxes. Explain your reasoning.Explanation / Answer
a) all zero
the net force on each block must be zero
because at rest acclereation is zero Fnet = ma = 0
b)
from newtons second law
a=F/m
A) a = 100N/10 kg = 10 m/s2
B) a = 50N/15 kg = 3.33 m/s2
C) a= 75 N/ 20 kg = 3.75 m/s2
D) a = 100N/15 kg = 6.66 m/s2
A>D>C>B
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