Home
Class 12
PHYSICS
A body of mass 40g is moving with a cons...

A body of mass 40g is moving with a constant velocity 2cm/s on a horizontal frictionless table. The force on the body in dynes is:-

A

50000dynes

B

80 dynes

C

Zero dynes

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
A

`a=0, therefore F=0`
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos
  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-I|52 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (JA)|4 Videos
  • RACE

    ALLEN|Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|24 Videos

Similar Questions

Explore conceptually related problems

A body of mass 40 gm is moving with a constant velocity of 2cm//sec on a horizontal frictionless table. The force on the table is

A car of mass 800 kg is moving with a constant velocity 40 km/h. Find the net force on it.

A car of mass 800 kg is moving with a constant velocity 40 km/h . Find the net force on it.

An object of mass 2kg is sliding with a constant velocity of 4ms^(-1) on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

To keep a particle moving with constant velocity on a frictionless horizontal surface an external force

A body of mass 5 kg is moving with a velocity of 20 m/s. If a force of 100 N is applied on it for 10 s in the same direction as its velocity, what will be the velociy of the body ?

A girl of mass 40kg jumps with a horizontal velocity of 5m//s onto a stationary cart with frictionless wheels. The mass of the cart is 3kg . What is her velocity as the cart starts moving? Assume that there is no external unbalanced force working in the horizontal direction.

A body of mass 5 kg is moving with velocity 2 m s^(-1) . Calculate its linear momentum.

A body of mass 5 kg is moving with velocity 2 m s^(-1) . Calculate its linear momentum.

A body of mass m moving with a constant velocity v hits another body of the same mass moving with the same velocity v but in the opposite direction and sticks to it. The velocity of the compound body after collision is

ALLEN-NEWTONS LAWS OF MOTION-EXERCISE-II
  1. An object of mass 10kg moves at a constant speed of 10 ms^(-1). A cons...

    Text Solution

    |

  2. The ratio of the weight of a man in a stationary lift and when it is m...

    Text Solution

    |

  3. A body of mass 40g is moving with a constant velocity 2cm/s on a horiz...

    Text Solution

    |

  4. The velocity acquired by a mass m in travelling a certain distance d s...

    Text Solution

    |

  5. A cork and a metal bob are connected by a string as shown in the figur...

    Text Solution

    |

  6. A body kept on a smooth inclined plane inclination 1 in x will remain ...

    Text Solution

    |

  7. A pulley is attached to the celing of a lift moing upwards. Two partic...

    Text Solution

    |

  8. Two masses of 1 kg and 5 kg are attached to the ends of a massless str...

    Text Solution

    |

  9. A player catches a ball of 200 gm moving with a speed of 20 m/s. if th...

    Text Solution

    |

  10. A frame will be inertial, if it moves with respect to another inertial...

    Text Solution

    |

  11. Two masses 10 kg and 20 kg respectively are connected by a massless sp...

    Text Solution

    |

  12. The pulley arrangements shown in figure are identical, the mass of the...

    Text Solution

    |

  13. What is the mechanical advantage of single fixed pulley:-

    Text Solution

    |

  14. Three masses of 1 kg, 6 kg and 3 kg are connected to each other with t...

    Text Solution

    |

  15. A balloons of mass M is descending at a constant acceleration alpha. W...

    Text Solution

    |

  16. The surface are frictionless, the ratio of T(1) and T(2) is

    Text Solution

    |

  17. The elevator shown in fig. is descending with an acceleration of 2ms^(...

    Text Solution

    |

  18. Two blocks of masses 6 kg and 4 kg are connected b a rope of mass 2 kg...

    Text Solution

    |

  19. A block of mass 2 kg is placed on the floor . The coefficient of stati...

    Text Solution

    |

  20. In the adjoining figure all surface are frictionless . What force F mu...

    Text Solution

    |