Home
Class 12
PHYSICS
A small block of mass m slides along a s...

A small block of mass m slides along a smooth frictional track as shown in the figure. If it starts from rest at P, what is the resultant force acting on it at Q?

A

`sqrt(70)mg`

B

`sqrt(60)mg`

C

`sqrt(75)mg`

D

`sqrt(65)mg`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 62

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos
  • NTA JEE MOCK TEST 64

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A small block of mass m slides along a smooth frictionless track as shown. (a) If it starts from rest at P , what is the resultant force acting on it at Q ? (b) At what height above the bottom should the block be released so that the force it exerts against the track at the top of the loop equals its weight?

A small block of mass m slides along a smooth track, as shown in fig. (i) If it starts from rest at P, what is the resulting force acting on it at Q ? (ii) at what height above the bottom of the loop should the block be released so that the force it exerts against the track at the top of the loop equals its weight?

A block of mass m slides along a frictionless surfce as shown in the figure. If it is releases from rest t A what is its speed at B?

A block of mass m slides down a smooth vertical circular track. During the motion, the block is in

A block of mass m slides down a smooth vertical circular track. During the motion, the block is in:

As shown in the figure , the friction force acting on the block is

Two masses rest on smooth surface as shown in the figure. Force exerted by P on Q is.

A block of mass m is released along a smooth track shown in figure from its top point. Find the word done by gravity during its downward motion to the bottom of track.

A block of mass 5kg is resting on a rough surface as shown in the figure. It is acted upon by a force of F towards right. Find frictional force acting on block when 25N.

A smooth block of mass m is held stationary on a smooth wedge of mass M and inclination theta as shown in figure .If the system is released from rest , then the normal reaction between the block and the wedge is

NTA MOCK TESTS-NTA JEE MOCK TEST 63-PHYSICS
  1. Wavelength of first line in Lyman series is lambda. What is wavelength...

    Text Solution

    |

  2. Two point masses connected by an ideal string are placed on a smooth h...

    Text Solution

    |

  3. A small block of mass m slides along a smooth frictional track as show...

    Text Solution

    |

  4. The length of the potentiometer wire is 600 cm and a current of 40 mA ...

    Text Solution

    |

  5. A transformer is used to light a 100 W and 110 V lamp from a 220V main...

    Text Solution

    |

  6. A point charge q is placed inside a conducting spherical shell of inne...

    Text Solution

    |

  7. A body is moving from rest under constant acceleration and let S1 be t...

    Text Solution

    |

  8. A body hanging from a massless spring stretches it by 3 cm on earth's ...

    Text Solution

    |

  9. A black body of mass 34.38 g and surface area 19.2cm^(2) is at an inti...

    Text Solution

    |

  10. During an adiabatic process, the pressure of a gas is found to be prop...

    Text Solution

    |

  11. A circular coil of radius R carries a current i. The magnetic field at...

    Text Solution

    |

  12. The masses m(1) m(2) and m(3) of the three bodies shown in fig . Are 5...

    Text Solution

    |

  13. Calculate the binding energy per nucleon of .(20)^(40)Ca. Given that ...

    Text Solution

    |

  14. A particle is subjected simultaneously to two SHMs, one along the x - ...

    Text Solution

    |

  15. If the work functions of three photosensitive materials are 1 eV, 2 eV...

    Text Solution

    |

  16. A uniform rod of length 2.0 m specific gravity 0.5 and mass 2 kg is hi...

    Text Solution

    |

  17. A fish looking up through the water sees the outside world contained i...

    Text Solution

    |

  18. A uniform circular disc of radius r placed on a rough horizontal plane...

    Text Solution

    |

  19. Heat energy is incident on the surface at the rate of 1000 J/min. If c...

    Text Solution

    |

  20. Dimensions of ohm are same as that of (where h is Planck's constant an...

    Text Solution

    |