BSc Physics SEM I 2017 18 2017-18 ATKT PHYSICS Paper I Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q3 A) Attempt any Assume that there Is no frict;
   • a) A block of mass m is placed on top of another of mass 4 beteen the bolcks of mass M and the surface on which it re: between the blocks that the minimum force that mé the system and still keep the blocks togetger is will is force be is applied to the upper blocks of maa m? Show that for a homogeneous isotropic material
2. Q3 B) Attempt any [7 M
   • a) Explain the three laws of Newton with example. Wh at Give the laws of friction,
   • b) For the liquid will flowing through pipe of variable area, show that the of flow at a section varies inversly area of cross
   • C) Attempt any one. MI
   • a) For a steel material, Y N/m” and bluk mi N/m’ calculate ratio and modulus of rigidity of steel
   • b) An elevator is moving upward with the acceleratio 70 ke is Standing in elavator .What would be its weight on
3. Q4 Attempt any three
   • a) Find m so that the vectors 2i+3j+4k a
   • b) Find the unit to the surface at a
   • c) solve the following
   • d)solve the D.E. is exact equation or not a
   • e) A cricket ball of mass 350 g is moving witha y ball is turned back with a velocity of 24m/s. The Dy abat so thal the average force exterted on the ball by the acts for alculate the and

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