First Year Engineering Syllabus, Mumbai University

































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Module 1: Resultant

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  COPLANAR FORCE SYSTEM          1. Coplanar Collinear Force System: If two or more forces acting along the same line (or the line of action is same) lying on the same plane then the force system is called as coplanar collinear force system.   Direction of the forces does not matter only the condition is that all the forces must act along the same line (or the line of action of all the forces must be same).  The line of action may be horizontal, vertical or inclined.    Following figure shows force F1 acting toward left and forces F2, F3 and F4 acting towards right along the same line (the line of action is same) and all the forces lying on the same plane therefore this force system is called as coplanar collinear force system.        2.  Coplanar non-collinear Force System: If two or more forces acting along the same line (or the line of action is same) lying on the same plane then the force system is calle...
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EM Practice questions set with answers for class test-II_2023-24

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  (Q.2)   The acceleration of the particle is defined by the relation a = 25 - 3x 2 mm/s 2 . The particle starts with no initial velocity at the position x = 0. (a) Determine the velocity when x = 2 mm (b) the position when velocity is again zero, (c) position where the velocity is maximum and the corresponding maximum velocity. (Q.3)   Acceleration of a particle moving along a straight line is represented by the relation a = 30 - 4.5x 2 m/s 2 . The particle starts with zero initial velocity at x = 0. Determine (a) The velocity when x = 3 m, (b) the position when the velocity is again zero (c) the position when the velocity is maximum. Solution:  (Q.6)   A stone is dropped from the top of a tower. When it has fallen a distance of 10m, another stone is dropped from a point 38 m below the top of the tower. If both the stones reach the ground at the same time calculate (i) the height of the tower (ii) the velocity of the stones when ...
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