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11th Standard English Medium Physics Subject Kinematics Book Back 2 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 10

    Part I

    5 x 2 = 10
  1. Define a vector. Give examples.

  2. Write a short note on the scalar product between two vectors.

  3. The position vectors particle has length 1m and makes 30° with the x-axis. What are the lengths of the x and y components of the position vector?

  4. Calculate the average velocity of the particle whose position vector changes from \(\overrightarrow { { r }_{ 1 } } =5\hat { i } +6\hat { j } \) to \(\overrightarrow { { r }_{ 2 } } =2\hat { i } +3\hat { j } \)  in a time 5 second.

  5. What are the resultants of the vector product of two given vectors given by \(\overrightarrow { A } =4\hat { i } -2\hat { j } +\hat { k } \ and \ \overrightarrow { B } =5\hat { i } +3\hat { j } -4\hat { k } \)

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