Home
Class 12
PHYSICS
A body is thrown up vertivally with an i...

A body is thrown up vertivally with an initial speed of `20ms^(-1)`. The speed of the body in `ms^(-1)` when it has reached 3/4 of the maximum height is

A

10

B

15

C

5

D

`10sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER - 1

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
  • MODEL TEST PAPER - 8

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

A stone is thrown vertically at a speed of 30 ms^(-1) making an angle of 45^(@) with the horizontal. What is the maximum height reached by the stone ? Take g=10 ms^(-2) .

A stone is thrown vertically at a speed of 30 ms^(-1) taking an angle of 45^(@) with the horizontal. What is the maximum height reached by the stone ? Take g = 10 ms^(-2) .

A ball is thrown vertically upwards with a velocity of 50ms^(-1) and the same later thrown at an angle for the maximum range. Compare the heights reached in the two cases (g=9.8ms^(-2))

A ball is thrown vertically upwards with a velocity of 20 ms^(-1) from the top of a multistorey building. The height of the point from where the ball is thrown is 25.0 m from the ground. (a) How high will the ball rise ? and (b) how long will it be before the ball hits the ground ? Take g = 10 ms^(-2) .

A car sounding its horn at 480 Hz moves towards a high wall at a speed of 20 ms^-1 . If the speed of sound is 340 ms^-1 , the frequency of the reflected sound heard by the passenger sitting in the car will be nearest to

A stone is thrown vertically upwards with a velocity of 20ms^(-1) from the top of a tower 96 m high. After what time will it reach the foot of the tower ? What will be the velocity of the stone reaching the point of projection? At what velocity will it strike the ground ? (g=9.8 ms^(-2))

A ball is projected vertically up with a speed of 50 m/s. Find the maximum height , the time to reach the maximum height, and the speed at the maximum height (g=10 m//s^(2)) (AS_(1))

Rain is falling vertically with a speed of 30 ms^(-1) . A woman rides a bicycle with a speed of 10 ms ^(-1) in the north to south direction . What is the direction in which she should hold her umbrella ?

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 7-PHYSICS
  1. A body moving along a straight line uniform acceleration 'a' covers a...

    Text Solution

    |

  2. In a journey, the first one - third of the distance is covered at a s...

    Text Solution

    |

  3. A body is thrown up vertivally with an initial speed of 20ms^(-1). The...

    Text Solution

    |

  4. Following can be used as a rectifier.

    Text Solution

    |

  5. The function of a moderator in a nuclear reactor is

    Text Solution

    |

  6. When an alpha particle is emitted from a nucleus, its

    Text Solution

    |

  7. During total solar eclipse, the spectrum of the sunlight observed is

    Text Solution

    |

  8. Photoelectric work function of a photoemissive metal depends on

    Text Solution

    |

  9. The frequency range of ultraviolet radiation is

    Text Solution

    |

  10. In a pure capacitance used on an a.c. circuit, the phase of the

    Text Solution

    |

  11. A moving coil galvanometer is converted intoan meterby connecting

    Text Solution

    |

  12. The plane of the coil of a T.G. is placed perpendicular to the magneti...

    Text Solution

    |

  13. When a sheet of dielectric is inserted between the two plates of a cap...

    Text Solution

    |

  14. A uniform wire of resistance R is stretched uniformly so that its leng...

    Text Solution

    |

  15. Surface density of change is maximum at the point where

    Text Solution

    |

  16. The vertical plane dip circle is perpendicular to the magnetic meridia...

    Text Solution

    |

  17. When a bar megnet is cut into two equal halves, the pole strength of e...

    Text Solution

    |

  18. if ip is the polarising angle and mu is the refractive index of the me...

    Text Solution

    |

  19. If the distance between the screen and the light source is reduced to ...

    Text Solution

    |

  20. RI for green light is 1.5. The deviation produced by a prism of angle ...

    Text Solution

    |