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11th Standard English Medium Physics Subject Work, Energy and Power Creative 3 Mark Questions with Solution Part - II

11th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 15
    5 x 3 = 15
  1. What is the stopping distance for a vehicle, of mass m moving with speed v along a level road, if the co-efficient of friction between the tyres and the road is \(\mu\)?

  2. A partice moves along the x-axis from x = 0 to x = 5m under the influence of a force given by F = 7 - 2x + 3x2. Find the work done in the process.

  3. Calculate the velocity of the bob of a simple pendulum at its mean position if it is able to rise to a vertical height of 10 cm. Take g = 9.8 m/s2.

  4. The potential energy of a spring when stretched through a distance x is 10J. What is the amount of work done on the same spring to sketch it through an additional distance 'x'?

  5. One coolie takes 1 min to raise a box through a height 2m. Another takes 30 m/s for the same job and does the same amount of work. Which one of these two has a greater power?

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