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CBSE Class 11-science Answered

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Asked by divyanshkr13 | 16 Jun, 2022, 10:25: AM
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Once the string is cut , then block-A , block-B and spring together form a system .
 
Spring force is internal to system . Only external force acting on system is gravitational force.
 
hence the system falls down with acceleration g = 9.8 m/s2
 
Hence acceleration of block-B ≈ 10 m/s2
Answered by Thiyagarajan K | 16 Jun, 2022, 02:34: PM

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CBSE 11-science - Physics
Two blocks of mass m=5kg and M=10 kg are connected by a string passing over a pulley B as shown. Another string connects the centre of the pulley B to the floor and passes over another pulley A as shown. An upward force F is applied at the centre of pulley A. Both the pulleys are massless. Find the acceleration of both the blocks if 1) F=100N.  2)F=500N
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Asked by sakethrockzz007 | 14 Aug, 2023, 04:30: PM
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CBSE 11-science - Physics
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Asked by divyanshkr13 | 16 Jun, 2022, 10:25: AM
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CBSE 11-science - Physics
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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Asked by alkrishna4652 | 24 Feb, 2022, 01:46: PM
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CBSE 11-science - Physics
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
Asked by unknownpass66 | 04 Jul, 2021, 11:28: AM
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CBSE 11-science - Physics
Find the force required to move a load of 100 N up a rough inclined plane, the force being applied parallel to the plane. The inclination of the plane is such that when the same body is kept on a perfectly smooth plane inclined at that angle, a force of 24 N applied at an inclination of 30 degree to the plane keeps the same in equilibrium. Assume coefficient of friction between the rough plane and load equal to 0.3
Asked by donehacking97 | 22 Dec, 2020, 06:09: AM
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CBSE 11-science - Physics
Hi
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Asked by jain.pradeep | 28 May, 2019, 09:08: PM
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CBSE 11-science - Physics
Hii
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Asked by jain.pradeep | 27 May, 2019, 06:49: PM
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CBSE 11-science - Physics
8th sum
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Asked by lovemaan5500 | 23 Jan, 2019, 08:17: PM
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CBSE 11-science - Physics
5th sum.plz
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Asked by lovemaan5500 | 22 Jan, 2019, 08:49: PM
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CBSE 11-science - Physics
please eplain-static means anything which is steady or changes with time.
Asked by ramkrushnaindustries | 11 Jun, 2018, 05:04: PM
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