The figure below shows three blocks being pushed across a frictionless floor by
ID: 1917663 • Letter: T
Question
The figure below shows three blocks being pushed across a frictionless floor by horizontal force F rightarrow . What total mass is accelerated to the right by force F rightarrow ? 17 kg 20 kg 18 kg 9 kg (b) What total mass is accelerated to the right by force F21 rightarrow of block 1 on block 2? 12 kg 15 kg 16 kg 13 kg What total mass is accelerated to the right by force F32 rightarrow of block 2 on block 3? 17 kg 15 kg 16 kg 10 kg Rank the blocks according to their accelerations, greatest first (use only the symbols > or =, for example 1 > 2=3). Rank forces F rightarrow , F21 rightarrow , and F32 rightarow according to their magnitude, greatest first (use only the symbols > or =, for example F = F21 > F32).Explanation / Answer
a) 17kg the total mass towards right of the force F
b)12kg which is total mass towards right of the force F21
c)10kg total mass towards right of the force F32
d)accleration of all the blocks are equal because they are connected so 1=2=3
e) F=17*a F21=12*a F32=10*a
hence F> F21 >F32
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