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Question-221218




Question Number 221218 by MATHEMATICSAM last updated on 27/May/25
Commented by MATHEMATICSAM last updated on 27/May/25
1) Three blocks are arranged as shown in   the figure. The whole system is placed on  a smooth horizontal plane. Coefficient of  friction between the plane and 5 kg block  is 0.1, between the 5 kg and 3 kg block is  0.1, between the 3 kg and 2 kg block is 0.2.  Find total friction force on 3 kg block.      2) Let no 100N force is applied. 10 N force  is applied to each block seperately. What  will be the accelaration of 3 blocks in each  case?
$$\left.\mathrm{1}\right)\:\mathrm{Three}\:\mathrm{blocks}\:\mathrm{are}\:\mathrm{arranged}\:\mathrm{as}\:\mathrm{shown}\:\mathrm{in}\: \\ $$$$\mathrm{the}\:\mathrm{figure}.\:\mathrm{The}\:\mathrm{whole}\:\mathrm{system}\:\mathrm{is}\:\mathrm{placed}\:\mathrm{on} \\ $$$$\mathrm{a}\:\mathrm{smooth}\:\mathrm{horizontal}\:\mathrm{plane}.\:\mathrm{Coefficient}\:\mathrm{of} \\ $$$$\mathrm{friction}\:\mathrm{between}\:\mathrm{the}\:\mathrm{plane}\:\mathrm{and}\:\mathrm{5}\:\mathrm{kg}\:\mathrm{block} \\ $$$$\mathrm{is}\:\mathrm{0}.\mathrm{1},\:\mathrm{between}\:\mathrm{the}\:\mathrm{5}\:\mathrm{kg}\:\mathrm{and}\:\mathrm{3}\:\mathrm{kg}\:\mathrm{block}\:\mathrm{is} \\ $$$$\mathrm{0}.\mathrm{1},\:\mathrm{between}\:\mathrm{the}\:\mathrm{3}\:\mathrm{kg}\:\mathrm{and}\:\mathrm{2}\:\mathrm{kg}\:\mathrm{block}\:\mathrm{is}\:\mathrm{0}.\mathrm{2}. \\ $$$$\mathrm{Find}\:\mathrm{total}\:\mathrm{friction}\:\mathrm{force}\:\mathrm{on}\:\mathrm{3}\:\mathrm{kg}\:\mathrm{block}. \\ $$$$ \\ $$$$ \\ $$$$\left.\mathrm{2}\right)\:\mathrm{Let}\:\mathrm{no}\:\mathrm{100N}\:\mathrm{force}\:\mathrm{is}\:\mathrm{applied}.\:\mathrm{10}\:\mathrm{N}\:\mathrm{force} \\ $$$$\mathrm{is}\:\mathrm{applied}\:\mathrm{to}\:\mathrm{each}\:\mathrm{block}\:\mathrm{seperately}.\:\mathrm{What} \\ $$$$\mathrm{will}\:\mathrm{be}\:\mathrm{the}\:\mathrm{accelaration}\:\mathrm{of}\:\mathrm{3}\:\mathrm{blocks}\:\mathrm{in}\:\mathrm{each} \\ $$$$\mathrm{case}? \\ $$

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