Home
Class 11
PHYSICS
A solid block of mass m = 1 kg is restin...

A solid block of mass m = 1 kg is resting on a horizontal platform as shown in figure. The z direction is vertically up. Coefficient of friction between the block and the platform is `mu = 0.2`. The platform is moved with a time dependent velocity givenby `vecV = (2thati + thatj+ 3thatk)m//s` . Calculate the magnitude of the force exerted by the block on the platform. Take `g = 10 m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
`sqrt(174)N`
Promotional Banner

Topper's Solved these Questions

  • MOMENTUM AND CENTRE OF MASS

    ARIHANT|Exercise Momentum And Center of Mass|117 Videos

  • ROTATIONAL MOTION

    ARIHANT|Exercise PHYSICS|159 Videos

Similar Questions

Explore conceptually related problems

A solid block of mass m = 1 kg is reasting on a horizontal platform as shown in figure. The z direction is vertically up. Coefficient of friction between the block and the paltform is mu = 0.2 . The platform is moved with a time dependent velocity given vec(V) = (2that(i) + that(j) + 3hatk) m//s . Then the magnitude of the net force exerted by the block on the platform is : (Take g = 10 m//s^(2) )

A block of mass 2 kg, initially at rest on a horizontal floor, is now acted upon by a horizontal force of 10 N . The coefficient of friction between the block and the floor is 0.2. If g = 10 m//s^(2) , then :

A block of mass m is placed at rest on an inclination theta to the horizontal.If the coefficient of friction between the block and the plane is mu , then the total force the inclined plane exerts on the block is

Three boys are standing on a horizontal platform of mass 170kg as shown in figure. The exchange their position as shown inthe figure. Distance moved by the platform is:

A block of mass m=1 kg has a speed v = 4 m//s at theta = 60^(@) on a circular track of radius R = 2 m as shown in figure. Size of the block is negligible. Coefficient of friction between block and the track is mu = 0.5 . The force of friction between the two is

Two block of masses m1 and m2 are connected with a massless unstretched spring and placed over a plank moving with an acceleration 'a' as shown in figure. The coefficient of friction between the blocks and platform is mu

Two blocks of masses m_(1) and m_(2) are placed in contact with each other on a horizontal platform as shown in figure The coefficent of friction between m_(1) and platform is 2mu and that between block m_(2) and platform is mu .The platform moves with an acceleration a . The normal reation between the blocks is

A body of mass m rests on a horizontal rough platform. Coefficient of static friction is u. Calculate the minimum possible force required to move the body along the platform.

A solid block of mass 2 kg is resting inside a cube shown in figure The cube is moving with a velocity hatv= 5 hati + 2hatj ms^(-1) If the coefficient of friction between the surface of cube and block is 0.2 then the force of friction between the block and cube is

A block of mass 3kg is at rest on a rough inclined plan as shown in the Figure. The magnitude of net force exerted by the surface on the block will be

ARIHANT-NEWTONS LAWS OF MOTION-All Questions
  1. A solid block of mass m = 1 kg is resting on a horizontal platform as ...

    Text Solution

    |

  2. Let vecu be the initial velocity of a particle and vecF be the resulta...

    Text Solution

    |

  3. A ball is projected vertically up from the floor of a room. The ball e...

    Text Solution

    |

  4. A small body of super dense material, whose mass is half the mass of t...

    Text Solution

    |

  5. N identical carts are connected to each other using strings of negligi...

    Text Solution

    |

  6. A toy cart has mass of 4 kg and is kept on a smooth horizontal surface...

    Text Solution

    |

  7. In the arrangement shown in the figure the system is in equilibrium. M...

    Text Solution

    |

  8. Two blocks of equal mass, M each, are connected to two ends of a massl...

    Text Solution

    |

  9. A pulley is mounted on a stand which is placed over a weighing scale. ...

    Text Solution

    |

  10. In the given arrangement, all strings and pulleys are light. When the ...

    Text Solution

    |

  11. A block slides down a frictionless plane inclined at an angle theta. F...

    Text Solution

    |

  12. A tall elevator is going up with an acceleration of a = 4 m//s^(2). A ...

    Text Solution

    |

  13. Due to air drag the falling bodies usually acquire a constant speed wh...

    Text Solution

    |

  14. A cylinder of mass M and radius r is suspended at the corner of a room...

    Text Solution

    |

  15. A rod of mass M and length L lies on an incline having inclination of ...

    Text Solution

    |

  16. A ball of mass M is in equilibrium between a vertical wall and the inc...

    Text Solution

    |

  17. A pendulum has a bob connected to a light wire. Bob ‘A’ is in equilibr...

    Text Solution

    |

  18. Two blocks of equal mass have been placed on two faces of a fixed wedg...

    Text Solution

    |

  19. In the system shown in the figure, all surfaces are smooth. Block A an...

    Text Solution

    |

  20. A particle of mass M rests on a rough inclined plane at an angle q t...

    Text Solution

    |

  21. A small body A starts sliding down from the top of a wedge (see fig) w...

    Text Solution

    |