Home
Class 11
PHYSICS
If a body is not at rest, the net extern...

If a body is not at rest, the net external force acting on it cannot be zero. is it true or false?

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Action and reaction cannot be added. (true/false)

A force can not change the shape of an object. (true/false)

Prove that if no external force is acting on a body. Its momentum will remain unchanged.

Forces acting on a body are said to be balanced if

If a body is moving with constant velocity, its acceleration will be zero (True . False.

True or False External fertilization takes place in frog.

Mass cannot be converted into energy.(True/ False)

State if each of the following statements is true or false. Give reasons for your answer:- Total energy of a system is always conserved, no matter what internal and external forces on the body are present.

MBD-LAWS OF MOTION-EXAMPLE
  1. If net force acting on a body is zero, then will the body remain neces...

    Text Solution

    |

  2. Calculate the mass of a body weighting 100 N. Take g = 10 ms^-2.

    Text Solution

    |

  3. If a body is not at rest, the net external force acting on it cannot b...

    Text Solution

    |

  4. Define one newton.

    Text Solution

    |

  5. What is the net force on a cork floating on water?

    Text Solution

    |

  6. Prove that if no external force is acting on a body. Its momentum will...

    Text Solution

    |

  7. If two ends of a spring balance are pulled each by a force of 10 kg. w...

    Text Solution

    |

  8. Action and reaction forces do not balance each other. Why?

    Text Solution

    |

  9. A meteorite burns in the atmosphere before it reaches the earth's surf...

    Text Solution

    |

  10. What is impulsive force?

    Text Solution

    |

  11. When a ball is thrown upwards, its momentum first decreases and then i...

    Text Solution

    |

  12. Explain why:- a horse cannot pull a cart and run in empty space.

    Text Solution

    |

  13. Why does a gun recoil when a bullet is fired from the gun ? Explain.

    Text Solution

    |

  14. On what factors inertia of a body depends?

    Text Solution

    |

  15. Why does an athlete run before taking a high jump ?

    Text Solution

    |

  16. We slip easily on a rainy day because coefficient of friction

    Text Solution

    |

  17. Why a person sitting inside a vehicle is thrown outwards, when vechile...

    Text Solution

    |

  18. How do you account for function of mudguards in vehicles?

    Text Solution

    |

  19. What is friction?

    Text Solution

    |

  20. What is the unit of coefficient of limiting friction?

    Text Solution

    |