Home
Class 11
PHYSICS
A man waves his arms, while walking. Thi...

A man waves his arms, while walking. This is

A

to keep constant velocity

B

to ease the tension

C

to increase the velocity.

D

to balance the effect of earth's gravity.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Transfer of heat

    MODERN PUBLICATION|Exercise Exercise|27 Videos

  • Unit test - Properties of bulk matter

    MODERN PUBLICATION|Exercise Example|130 Videos

Similar Questions

Explore conceptually related problems

A 30-year old man with a history of no prior immunization steps on nail while walking in his courtyard . Which immunization is required?

Why a cricket player lowers his hand while taking of catch of cricket ball ?

Why does a traffic policeman standing on a crowded square put a mask on his face while controlling the traffic ?

Explain why:- a cricketer moves his hands backwards while holding a catch.

A man walks at 1m/s for 60 minutes he takes rest for 20 minutes and then walks at a seed of 1m/s for 60 minutes find his average speed.

The speed of rotation of a person with some weights in his hands and standing on a rotating platform increases as he draws his arms close to his chest.Why?Explain.

MODERN PUBLICATION-Unit Test - Gravitation-Example
  1. The force of gravitation may be attractive or repulsive. (T or F)

    Text Solution

    |

  2. Which of the following is an evidence to show that there must be a for...

    Text Solution

    |

  3. A man waves his arms, while walking. This is

    Text Solution

    |

  4. Two spheres of same size, one of mass 2 kg and another of mass 4 kg ar...

    Text Solution

    |

  5. A particle is thrown vertically upwards with a velocity of 4 ms^-1. Th...

    Text Solution

    |

  6. A body is thrown vertically upwards with a velocity of 19.6 ms^-1 The ...

    Text Solution

    |

  7. A parachutist after bailing out falls 50 m without friction When parac...

    Text Solution

    |

  8. Two planets of radii r1, and r2, are made from the same material. The ...

    Text Solution

    |

  9. If mass of a body is M on the earth surface, then the mass of the same...

    Text Solution

    |

  10. If the radius of earth shrinks by one percent and its mass remaining t...

    Text Solution

    |

  11. At what depth below the surface of the earth, is the value of g same a...

    Text Solution

    |

  12. A body weighed 250 N on the surface assuming the earth to be a sphere ...

    Text Solution

    |

  13. If the earth were to cease rotating about its own axis, the increase i...

    Text Solution

    |

  14. The angular velocity of rotation of a star (of mass M and radius R), a...

    Text Solution

    |

  15. Knowing that mass of moon is M/81 (where M is the mass of earth), find...

    Text Solution

    |

  16. Two masses M1 and M2 are initially at rest at infinite distance apart....

    Text Solution

    |

  17. The velocity with which a projectile, must be tired so that it escapes...

    Text Solution

    |

  18. The escape velocity of a particle of mass m varies directly as

    Text Solution

    |

  19. The escape velocity for a body projected vertically upwards from the s...

    Text Solution

    |

  20. The mass of moon is 1/81 of earth's mass and its radius 1/4 of that of...

    Text Solution

    |