Home
Class 11
PHYSICS
A block of mass m is placed in equilibri...

A block of mass `m` is placed in equilibrium on a moving plank. The maximum horizontal acceleration of the plank for `mu=0.2` is:

A

`2m//s^(2)`

B

`3m//s^(2)`

C

dependent on the mass `m`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
If block does not slide w.r.t platform
`F=ma` (i)
But `flemuN` (ii)
Form (i) and (ii), `malemumg`
`alemug`
Hence maximum acceleration of the plank is
`0.2xx10=2m//s^(2)` .
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    A2Z|Exercise Dynamics Of Circular Motion|31 Videos

  • NEWTONS LAWS OF MOTION

    A2Z|Exercise Problems Based On Mixed Concepts|51 Videos

  • NEWTONS LAWS OF MOTION

    A2Z|Exercise Applications Of Newton'S Laws Of Motion|33 Videos

  • MOTION IN TWO DIMENSION

    A2Z|Exercise Chapter Test|29 Videos

  • OSCILLATION AND SIMPLE HARMONIC MOTION

    A2Z|Exercise Chapter Test|29 Videos

Similar Questions

Explore conceptually related problems

A block of mass m=2kg is placed in equilibrium on a moving plank accelerating with a=4m//s^(2) . If coefficient of friction between plank and block mu=0.2 . The friction force acting on theblock is:

A block of mass m=2kg is placed in equilibrium on a moving plank accelerating with a=1m//s^(2) . If coefficient of friction between plank and block mu=0.2 . The friction force acting on theblock is:

A block of mass m is kept on a rough plank which moves with a horizontal acceleration a. If the plank was at rest at t=0 , and the block does not slide relative to the plank, find the work done by friction on the (a) block, (b) plane, (c) system, (block+plank) during time t .

A block of mass m kg is placed on a plank. The plank is moving with an acceleration 6 hat(i) + 6 hat(j) (in m//s^(2) ). The frictional force acting on the block is (mu = 0.5, g = 10 m//s^(2)) :

A plank of mass M is placed on a rough horizontal surface. A man m walks on the plank with an acceleration 'a' while the plank is also acted upon by a horizontal force F whose magnitude and direction can be adjusted to keep the plank at rest. The coefficient of friction between plank and surface is mu . Choose the correct options. .

A plank of mass m_1 with a uniform sphere of mass m_2 placed on it rests on a smooth horizontal plane. A constant horizontal force F is applied to the plank. With what acceleration will the plank and the centre of the sphere move provided there is no sliding between the plank and the sphere?

A block of mass m is placed gently onto a long plank of mass M moving with a velocity v_(0) on a smooth horizontal floor. If friction is present between M and m :

A plank of mass m_(1) with a uniform solid sphere of mass m_(2) placed on it rests and a force F is applied to the plank. The acceleration of the plank provided there is no sliding between the plank and the sphere is (F/(m_(1)+n/7m_(2))) then the value of n is

A block of mass m is gently placed over a massive plank moving horizontal over a smooth surface with velocity 10 ms^(-1) . The coefficient of friction between the block and the plank is 0.2. The distance travelled by the block till it slides on the plank is [g = 10 ms^(-2)]

A2Z-NEWTONS LAWS OF MOTION-Basic Concept Of Static And Kinetic Frictions
  1. A body of mass 40kg resting on a rough horizontal surface is subjected...

    Text Solution

    |

  2. A 3kg block is pulled by a force which is inclined at 37^(@) to the ho...

    Text Solution

    |

  3. A block of mass m is placed in equilibrium on a moving plank. The maxi...

    Text Solution

    |

  4. A block of mass m=2kg is placed in equilibrium on a moving plank accel...

    Text Solution

    |

  5. A block of mass m=2kg is placed in equilibrium on a moving plank accel...

    Text Solution

    |

  6. A block of mass 70kg is kept on a rough horizontal surface (mu=0.4) . ...

    Text Solution

    |

  7. A block of mass 2kg rests on a rough inclined plane making an angle of...

    Text Solution

    |

  8. For the arrangment shown in the fig. the tension in the string is [Giv...

    Text Solution

    |

  9. A block of mass 4kg rests on an an inclined plane. The inclination of ...

    Text Solution

    |

  10. A block of mass m is placed on a rough inclined plane. When the inclin...

    Text Solution

    |

  11. In the arrangement shown in the figure [sin37^(@)=3//5] .

    Text Solution

    |

  12. A block of mass m=4kg is placed oner a rough inclined plane as shown i...

    Text Solution

    |

  13. A block of mass mm remains stationary on a fixed inclined plane of inc...

    Text Solution

    |

  14. Find the maximum value of (m//m) in the situation shown in figure so t...

    Text Solution

    |

  15. A body of mass 10 kg lies on a rough inclined plane of inclination the...

    Text Solution

    |

  16. A small mass slide down an inclined plane of inclination theta with th...

    Text Solution

    |

  17. A block of mass m lying on a horizontal plane , is acted upon by a ho...

    Text Solution

    |

  18. The minimum acceleration that must be impprted to the cart in the figu...

    Text Solution

    |

  19. A particle is projected along the line of greatest slope up a rough pl...

    Text Solution

    |

  20. A block of mass 15 kg is resting on a rough inclined plane as shown in...

    Text Solution

    |