Home
Class 11
PHYSICS
A gun throws shell with muzzle speed of ...

A gun throws shell with muzzle speed of `98 m s^-1`. When the gun is elevated at `45^@`, the range is observed as 900 m. Due to air resistance is range is decreased by

A

160 m

B

120 m

C

80 m

D

40 m

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

  • OPTICS

    TARGET PUBLICATION|Exercise EXERCISE|447 Videos

Similar Questions

Explore conceptually related problems

If the range of a gun which fires a shell with muzzle speed v is R, then the angle of elevation of the gun is

A boy playing on the roof of 10 m high building throws a ball with a speed of 10 m s^-1 at an angle of 30^@ with the horizontal. How far from the throwing point will the ball be at the height of 10 m from the ground? (g=10 m s^-2, sin 30^@ = 1/2, cos 30^@= sqrt3/2)

In the experiment for the determination of the speed of sound in air using the resonance column method, the length of the air column that resonates in the fundamental mode, with a tuning fork is 0.1m . When this length is changed to 0.35m , the same tuning fork resonates with the first overtone. Calculate the end correction.

A square loop of side 12 cm with its sides parallel to X and Y axes is moved with a velocity of 8cms^-1 in the positive x- direction in an enviornment containing a magnetic field in the positive z- direction. The field is neither uniform in space nor constant in time. it has a gradient of 10^-3Tcm^-1 along the negative x-direction (that is it increases by 10^-3 T cm^-1 as one moves in the negative x-direction) and it is decreasing in time at the rate of 10^-3T s^-1 . Determine the direction and magnitude of the induced current in the loop if its resistance is 4.50 m Omega .

A satellite of mass m is orbiting the earth in a circular orbit of radius r . It starts losing energy due to small air resistance at the rate of C J//s . Then the time teken for the satellite to reach the earth is...........

A ladder 5 m in length is resting against vertical wall. The bottom of the ladder is pulled along the ground away from the wall at the rate of 1.5m/sec. The length of the highest point of the ladder when the foot of the ladder 4.0 m away from the wall decreases at the rate of a)2m/s b)3m/s c)2.5m/s d)1.5m/s

Two stones are thrown up simultaneously from the edge of a clir 240 m high with initial speed of 10 m/s and 40 m/s respectively. Which of the following graphs best represents the time variation of relative position of the second stone with respect to the first? (Assume stones do not rebound after hitting the ground and neglect air resistance, take g=10 m/s^2 ) (The figures are schematic and not drawn to scale).

Two trains A and B moving with speeds 20m//s and 30m//s respectively in the same direction on the same straight track, with B ahead of A . The engines are at the front ends. The engine of train A blows a long whistle. Assume that the sound of the whistle is composed of components varying in frequency from f_(1) = 800 Hz to f_(2) = 1120 Hz , as shown in the figure. The spread in the frequency (highest frequency - lowest frequency) is thus 320 Hz . The speed of sound in still air is 340 m//s .The speed of sound of the whistle is

An automobile moves on a road with a speed of 54 km h^-1 . The radius of its wheels is 0.45 m and the moment of inertia of the wheel about its aXIIs of rotation is 3 kg m^2 . If the vehicle is brought to rest in 15s, the magnitude of average torque transmitted by its brakes to the wheel is

TARGET PUBLICATION-Motion in a plane-Exercise
  1. At the point of horizontal range (R), the coordinates are

    Text Solution

    |

  2. A shell is fired from canon with a velocity of 200 m/s at an angle of ...

    Text Solution

    |

  3. A gun throws shell with muzzle speed of 98 m s^-1. When the gun is ele...

    Text Solution

    |

  4. The initial velocity of the projectile is u and its maximum range is R...

    Text Solution

    |

  5. A shell fired from a canon can cover maximum horizontal distance of 10...

    Text Solution

    |

  6. For the maximum height of a projectile

    Text Solution

    |

  7. The projectile attains maximum height when it is projected at an angle...

    Text Solution

    |

  8. A man can jump on the moon times as high as on the earth.

    Text Solution

    |

  9. A cricketer can throw a ball to a maximum horizontal distance of 100 m...

    Text Solution

    |

  10. For a projectile motion, the horizontal range of projectile is same fo...

    Text Solution

    |

  11. A stone is projected with velocity of 100 m/s at an angle of 60^@ with...

    Text Solution

    |

  12. The maximum horizontal range of projectile is 980 m. Its initial speed...

    Text Solution

    |

  13. The height y and the distance x along the horizontal, for a body proje...

    Text Solution

    |

  14. A body is projected with a velocity of 30 m/s at an angle of 30^@ wit...

    Text Solution

    |

  15. When the particle is projected vertically upwards then theta, H and R ...

    Text Solution

    |

  16. In uniform circular motion,

    Text Solution

    |

  17. Select the WRONG statement

    Text Solution

    |

  18. IF a particle moves in a circle describing equal angles is equal inter...

    Text Solution

    |

  19. A particle moves along a circle with a uniform speed v. After the posi...

    Text Solution

    |

  20. A particle in U.C.M possesses linear accleration since

    Text Solution

    |