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CBSE Class 11-science Answered

show that centripetal force=mv^2/r
Asked by | 28 Aug, 2012, 09:17: PM
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Answered by | 29 Aug, 2012, 11:15: AM

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CBSE 11-science - Physics
A block of mass m is placed on a wedge as shown. Find difference between maximum and minimum (a(max) – a(min) ) horizontal rightward acceleration of wedge for which block remains at rest with respect to wedge. (A) 10g/9 (B) g/9 (C) g (D) None of these
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In the arrangement shown in the figure, a heavy pulley of mass M is suspended from a spring of stiffness constant K and the mass m is suspended from a string tightly wound on the pulley. If the mass m is given a small downward displacement and released, find the time period of small oscillations (Take pulley as Disc) and string does not slips on the pulley.
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bus weighing 500 kg on a slope that makes an angle 60 degrees with the horizontal the component of bus weight parallel to the slope is (A) 3500sqrt(3) * N (B) 1500sqrt(3) * N (C) 2500sqrt(3) * N (D) 2500N
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CBSE 11-science - Physics
establish Newton's first law from second law
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CBSE 11-science - Physics
A body of mass 50g is moving with a constant velocity of 5m/s on a horizontal smooth surface. The force acting on the body is
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