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11th Standard English Medium Physics Subject Laws of Motion Creative 1 Mark Questions with Solution Part - I

11th Standard

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Physics

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. A heavy iron rod of weight W is having its one end on the ground and the other on the shoulder of a man. The rod makes an angle ፀ with the horizontal. What is the weight experienced by the man?

    (a)

    W sin ፀ

    (b)

    W cos ፀ

    (c)

    W

    (d)

    \(\frac { W }{ 2 } \)

  2. A ship of mass 3\(\times\) 106 kg initially at rest is pulled by a force of 6 \(\times\) 104 N through a distance of 4m. The speed of the ship is (Assume resistive of water is negligible)

    (a)

    1.5 m/s

    (b)

    20 m/s

    (c)

    0.5 m/s

    (d)

    0.4 m/s


  3. Two blocks A & B of masses 2m & m are connected by a massless and inextensible strong. The magnitudes of acceleration of A & B immediately after the string is cut are ____________.

    (a)

    \(\frac { g }{ 2 } \),g

    (b)

    g,g

    (c)

    g,\(\frac { g }{ 2 } \)

    (d)

    \(\frac { g }{ 2 } \),\(\frac { g }{ 2 } \)

  4. A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m. A force F is applied at the free end of the rope. The force exerted by the rope on the block ____________.

    (a)

    \(\frac { MF }{ M+m } \)

    (b)

    \(\frac { M+m }{ MF } \)

    (c)

    \(\frac { M }{ M-m } \) .F

    (d)

    \(\frac { M-m }{ M } \) .F

  5. Three forces F2, F2 & F3 are acting on a particle of mass m such that F2 & F3 are mutually perpendicular, then the particle remains stationary. If the force F1 is now removed, then the acceleration of the particle is _____________.

    (a)

    \(\frac { { F }_{ 1 } }{ m } \)

    (b)

    \(\frac { { F }_{ 2 }{ F }_{ 3 } }{ mF } \)

    (c)

    \(\frac { { F }_{ 2 }-{ F }_{ 3 } }{ m } \)

    (d)

    \(\frac { { F }_{ 2 } }{ m } \)

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