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![Page 1: Engineering Mechanics Assignment Sheet – 3 … · Web viewEngineering Mechanics Assignment Sheet – 3 Module – 3 Friction & Forces in Space Assignment Question A block having](https://reader030.vdocument.in/reader030/viewer/2022040915/5e8cdb01693301633f019261/html5/thumbnails/1.jpg)
Engineering Mechanics Assignment Sheet – 3 Module – 3 Friction & Forces in Space
Assignment Question1. A block having mass 40 Kg and dimension as shown in Fig, is resting on a flat surface. The
coefficient of static friction between the block and the surface is 0.3. Find the magnitude of tension T required to cause motion. Also describe in what manner motion would take place if:a) h = 15 cm b) h = 22 cm
2. A 100 wedge is to be forced under end B of 6 Kg rod AB. If µs = 0.4 between the wedge and rod and 0.2 between the wedge & the floor. Determine the smallest force P require to raise end B of rod.
3. There block are placed on the surface one above the other as shown in fig. The static coefficient between the blocks and block C and surface is also shown. Determine the maximum value of P that can be applied before any Slipping take place. [Ans: 25.5 N]
[May 08]
4. A plate foundation is subjected to five vertical forces as shown in fig. Replace these five forces by means of single vertical forces and find the point of replacement.
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Engineering Mechanics Assignment Sheet – 3 Module – 3 Friction & Forces in Space
5. Force F = (3i – 4j + 12k) N acts at point A (1, -2, 3). Findi) Moment of force about originii) Moment of force about point B(2,1,2)m
[Ans: MFO = (-12i – 3j -2k) Nm, MF
B= (-32i + 15j + 13k) NM]
6. Determine the tension in cable AB, AC & A. If weight of cylinder is 160 Kg.