Home
Class 11
PHYSICS
When a man walks he waves his hands, bec...

When a man walks he waves his hands, because……….

A

to retain constant velocity.

B

to achieve trnsion force.

C

to increase velocity.

D

to balance the gravitation effect by earth.

Text Solution

Verified by Experts

The correct Answer is:
D
The centre of gravity stays at suitable centre and he can walk easily.
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    KUMAR PRAKASHAN|Exercise SECTION-F|20 Videos

  • MOTION IN A STRAIGHT LINE

    KUMAR PRAKASHAN|Exercise QUESTION PAPER|11 Videos

  • MOTION IN A STRAIGHT LINE

    KUMAR PRAKASHAN|Exercise SECTION-D|26 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    KUMAR PRAKASHAN|Exercise QUESTION PAPER (SECTION -C)|3 Videos

  • OBJECTIVE QUESTIONS AS PER NEW PAPER STYLE

    KUMAR PRAKASHAN|Exercise CHAPTER - 8 (Match Type questions)|5 Videos

Similar Questions

Explore conceptually related problems

A man 2m tall walks at a uniform speed of 4m/min away from a lamp post 6m high. Find the rate at which the length of his shadow decreases.

If the height of a man and the length of his shadow are equal, then the Sun's elevation is…………..at that time.

A man is standing on a weighing machine with a block in his hand. The machine records w. When he takes the block upwards with some acceleration the machine records w_(1). When he takes the block down with some acceleration, the machine records w_(2). Then choose correct option

Answer the following question : A man with a wristwatch on his hand falls from the top of a tower. Does the watch give correct time during the free fall ?

A man of height 2 metres walks at a uniform speed of 5 km/h away from a lamp post which is 6 metres high. Find the rate at which the length of his shadow increases.

In a game, a man wins a rupee for a six and loses a rupee for any other number when a fair die is thrown. The man decided to throw a die thrice but to quit as and when he gets a six. Find the expected value of the amount he "wins" // "loses" .

If man were standing unsymmetrically between parallel cliffs, claps his hands and starts hearing a series of echoes at intervals of 1 s. If speed of sound in air is 340 ms-1, the distance between two cliffs would be ......

KUMAR PRAKASHAN-MOTION IN A STRAIGHT LINE -SECTION-E
  1. A ship A is moving Westwards with a speed of 10 km h^(-1) and a ship ...

    Text Solution

    |

  2. A particle of unit mass undergoes one dimensional motion such that its...

    Text Solution

    |

  3. Two stones of masses m and 2 m are whirled in horizontal circles, the ...

    Text Solution

    |

  4. Two cars P and Q start from a point at the same time in a straight lin...

    Text Solution

    |

  5. Find the area of a square inscribed in a circle of radius 8 cm.

    Text Solution

    |

  6. A stone falls freely under gravity. It covers distances h(1), h(2) and...

    Text Solution

    |

  7. In an n type silicon, which of the following statements is true:

    Text Solution

    |

  8. The displacement of object is proportional to cube of the time, then a...

    Text Solution

    |

  9. When a man walks he waves his hands, because……….

    Text Solution

    |

  10. If A and B are invertible matrices, then which of the following is not...

    Text Solution

    |

  11. Which of the following statement is correct ?

    Text Solution

    |

  12. Mass of an object is 2 kg and mass of another object is 4 kg. Size of ...

    Text Solution

    |

  13. Which of the following statement is correct ?

    Text Solution

    |

  14. A train of 100 m length moves with 40 m/s and overtakes another train ...

    Text Solution

    |

  15. A bullet is fired into a huge wooden block. The bullet while moving in...

    Text Solution

    |

  16. Speeds of two identical cars are u and 4u at a specific instant. The r...

    Text Solution

    |

  17. A ball is fallen freely from top of tower of height 100 m and another ...

    Text Solution

    |

  18. If the displacement at time 't' is x = acost, the acceleration is .......

    Text Solution

    |

  19. The below shown graphs represent the same motion. But one of them is i...

    Text Solution

    |

  20. Due to which the surface charge density arises on the surface of a die...

    Text Solution

    |