Home
Class 11
PHYSICS
A bullet is fired with a velocity of 900...

A bullet is fired with a velocity of 900 km/h in the horizontal direction from a gun kept 20 m above the ground . Take `g=10"" m//s^2`. Find out the time of flight

Text Solution

Verified by Experts

The correct Answer is:
2s
Promotional Banner

Topper's Solved these Questions

  • VECTOR

    CHHAYA PUBLICATION|Exercise PROBLEM SET-II (Hot Numerical Problems)|24 Videos

  • VECTOR

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Assertion -reason type)|12 Videos

  • VECTOR

    CHHAYA PUBLICATION|Exercise PROBLEM SET-I|59 Videos

  • THERMOMETRY

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIEVE - WBJEE|1 Videos

  • VISCOSITY AND SURFACE TENSION

    CHHAYA PUBLICATION|Exercise EXERCISE (CBSE SCANNER)|9 Videos

Similar Questions

Explore conceptually related problems

A bullet of mass 6 g is fired with a velocity of 500 m cdot s^(-1) from a gun of mass 4 kg. Find the recoil velocity of gun.

An aeroplane is flying horizontally at a height (2)/(3) km above the ground with a velocity of 15km/h. find the rate at which it is receding from a fixed point on the ground which it passed over 2 minutes ago.

A gun is mounted on a platform fitted with frictionless wheels. The mass of the plarform with the gun, shells and the operator is M. The gun fires shells one after another with a velocity v in the horizontal direction. If mass of each shell is m. show that the velocity of recoil of the platform after N shells are fired, is V_(N) = (Nmv)/((M - mN)) .

An aeroplane is flying horizontally at a height of 2/3k m with a velocity of 15 km/h. Find the rate at which it is receding from a fixed point on the ground which it passed over 2 min ago.

A gun is mounted on a platform fitted with frictionless wheels. The mass of the platform With the gun, shells and the operator is M. The gun.fires shells one after another with a velocity v in the horizontal direction. If mass of each shell is in, show that the velocity of recoil of the platform after N shells are fired, is V_R = (Nmv)/(M-mN) .

A body is projected with a velocity 20 m*s^(-1) , making an angle of 45^@ with the horizontal. Calculate (i) the time taken to reach the ground [g=10 m*s^(-2)] ,

What are two angles of projection of a projectile projected with velocity 30 m/s , so that the horizontal range is 45m . Take g=10 m/s^2 .

CHHAYA PUBLICATION-VECTOR-PROBLEM SET-II
  1. If |vecAxxvecB|=sqrt(3)vecA*vecB, then show that |vecA+vecB|=sqrt(A^...

    Text Solution

    |

  2. vecA,vecB and vecC are unit vectors, vecA*vecB=vecA*vecC=0 , and the a...

    Text Solution

    |

  3. veca1 and veca2 two non-collinear unit vectors and |veca1+veca2|=sqrt(...

    Text Solution

    |

  4. A body is thrown horizontally with velocity 122 m *s^(-1) from the top...

    Text Solution

    |

  5. The maximum height attained and the range of a projectile are H and R ...

    Text Solution

    |

  6. A fighter plane flying horizontally at an altitude of 1.5 km with spe...

    Text Solution

    |

  7. Find the angle of projection of a projectile for which the horizontal ...

    Text Solution

    |

  8. A particle is projected with a velocity of 20 m/s at an angle of 30^@...

    Text Solution

    |

  9. A stone ,thrown with the same initial speed ,rises 20 m higher when t...

    Text Solution

    |

  10. A bullet is fired with a velocity of 900 km/h in the horizontal direct...

    Text Solution

    |

  11. A bullet is fired with a velocity of 900 km/h in the horizontal direct...

    Text Solution

    |

  12. A bullet is fired with a velocity of 10m/s^(2) at an angle 30^(degree)...

    Text Solution

    |

  13. Two particles are projected simultaneously with the same initial veloc...

    Text Solution

    |

  14. The resultant velocity of a projectile at its highest point is sqrt(6...

    Text Solution

    |

  15. Maximum and minimum values of the resultant of two forces, acting at...

    Text Solution

    |

  16. At 10.a.m.., a ship A is at 40 km to the east of a ship B . Ship A ...

    Text Solution

    |

  17. Two vectors hati+hatj+2hatk and hati+hatj-hatk represent two sides of...

    Text Solution

    |

  18. In a trapezium ABCD vec(AB)=3hati, vec(AD)=hati+2hatj ,vec(DC)=2hati....

    Text Solution

    |

  19. The position vector of a particle is given by vecr=3.0t hati-2.0t^2h...

    Text Solution

    |

  20. The position vector of a particle is given by vecr=3.0t hati-2.0t^2h...

    Text Solution

    |