- #1

barbieprincess87

**.....the problem about tension forces....**

ok so the problem states:

**three blocks are pulled along a frictionless surface by a horizontal force ( as shown in the figure ill describe)A)what is the acceleration of the system? B) what are the tension forces in the light strings?(**

*hint: can T(1) equal T(2)? investigate by drawing free body diagrams of each block seperately)*

so the drawing has 3 blocks each increasing in size relative to the last one m(1) the first block is 1.0 kg.there is a string attatching blocks m(1) and m(2) labeled T1 and arrows pointing them toward each other. block 2 m(2) is 2.0 kg and block 3 m(3) is 3.0 kg. the string attatching them is labeled T(2) and the arrows again are pushing them toward each other. off of m(3) there is an arrow pointing -> labeled F= 18.0 N. there is an arrow -> that shows a goes in that direction i suppose.

so first i drew freebody diagrams for each. then i labeled F(g) which always points down. then i labeled F(a)-> on each. so i guess you apply Newton's second law to it somehow. im unsure how to solve for acceleration and how to answer the second part. would you plug in force and mass for each to get their acceleration?then add them? any help anyone could give me would be GREATLY appreciated! thanks!so the drawing has 3 blocks each increasing in size relative to the last one m(1) the first block is 1.0 kg.there is a string attatching blocks m(1) and m(2) labeled T1 and arrows pointing them toward each other. block 2 m(2) is 2.0 kg and block 3 m(3) is 3.0 kg. the string attatching them is labeled T(2) and the arrows again are pushing them toward each other. off of m(3) there is an arrow pointing -> labeled F= 18.0 N. there is an arrow -> that shows a goes in that direction i suppose.

so first i drew freebody diagrams for each. then i labeled F(g) which always points down. then i labeled F(a)-> on each. so i guess you apply Newton's second law to it somehow. im unsure how to solve for acceleration and how to answer the second part. would you plug in force and mass for each to get their acceleration?then add them? any help anyone could give me would be GREATLY appreciated! thanks!