Home
Class 11
PHYSICS
Why bullets/missiles are cylindrical and...

Why bullets/missiles are cylindrical and given an initial spin.

Text Solution

Verified by Experts

Rotating bullets have equal pressure all around them. Hence no sideward or upward or dowaward drift takes place.
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    SUBHASH PUBLICATION|Exercise THREE MARK QUESTIONS AND ANSWERS|6 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|33 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|33 Videos

  • LAWS OF MOTION

    SUBHASH PUBLICATION|Exercise Numericals with solutions|15 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|11 Videos

Similar Questions

Explore conceptually related problems

State the factors on which at a given temperature the resistance of a cylindrical conductor depends, State the S.I unit of resistivity.

Two rectangular blocks A and B of masses 2 kg and 3 gk respectively are connected by a spring of spring constant 10.8Nm^(-1) and are placed on a frictionless horizontal surface. The block A was given an initial velocity of 0.15 ms^(-1) in the direction shown in the figure. The maximum compression of the spring during the motion is

A and B are two radioactive elements. The mixture of these elements show a total activity of 1200 disintegrations/minute. The half life of A is 1 day and that B is 2days. What will be the total activity after 4days? Given: The initial number of atoms in A and B are equal

The length of a given cylindrical wire is increased by 100%. Due to consequent decrease in diameter the change in the resistance of the wire will be

SUBHASH PUBLICATION-MECHANICAL PROPERTIES OF FLUIDS-TWO MARK QUESTIONS AND ANSWERS
  1. What is meant by critical velocity of a liquid? Explain the characteri...

    Text Solution

    |

  2. Mention any two applications of Bernoulli's theorem.

    Text Solution

    |

  3. Why bullets/missiles are cylindrical and given an initial spin.

    Text Solution

    |

  4. Why is that the life boat often collides with the mother ship?

    Text Solution

    |

  5. If 'H' is the height of liquid in a cylindrical container and 'h' is t...

    Text Solution

    |

  6. For what value of 'h' of orifice below the jet the range will be maxim...

    Text Solution

    |

  7. What is magnus effect ?

    Text Solution

    |

  8. Name the two types molecular forces.

    Text Solution

    |

  9. Water sticks to glass whereas mercury does not. Explain.

    Text Solution

    |

  10. Distinguish between cohesive and adhesive forces.

    Text Solution

    |

  11. Give any two illustrations of surface tension.

    Text Solution

    |

  12. Pond skaters walk on the surface of water. Give reason for it.

    Text Solution

    |

  13. Explain the action of detergents.

    Text Solution

    |

  14. When it is raining, it is not advised to resist water drops falling on...

    Text Solution

    |

  15. What is meant by surface energy? Give the expression for surface energ...

    Text Solution

    |

  16. Give the expression for the energy evolved, when the surface area of t...

    Text Solution

    |

  17. Give the expression for the excess pressure in a soap bubble.

    Text Solution

    |

  18. Give the expression for the excess pressure across curved surfaces fac...

    Text Solution

    |

  19. Give the expression for the excess pressure across curved surfaces fac...

    Text Solution

    |

  20. State Newton's law of viscosity of fluids in motion.

    Text Solution

    |