Home
Class 12
PHYSICS
A ball is released from point A. During ...

A ball is released from point A. During its motion ball takes two seconds from B to C Find the time taken by ball from A to C.
.

A

`2s`

B

`4s`

C

`5s`

D

`3s`

Text Solution

Verified by Experts

The correct Answer is:
C

`uxx2+(1)/(2)xx10xx2^(2)=80rArr30m//s`
`30=0+10xxt'rArrt'=3s`
total time`=t+t'=(2+3)s=5s`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A ball dropped from a point P crosses a point Q in t seconds. The time taken by it to travel from Q to R, if PQ = QR.

A ball is released from the top of a tower of height h metre. It takes T second to reach the ground. What is the position of the ball in T/3 second?

A ball is released from the top of a tower of height h metre. It takes T second to reach the ground. What is the position of the ball in T/3 second?

A ball is released from the top of a tower of height h metre. It takes T second to reach the ground. What is the position of the ball in T/3 second?

A ball is released from the top of a tower of height h metre. It takes T second to reach the ground. What is the position of the ball in T/3 second?

Let bag A contains 3 red balls and 9 black balls. Bag B contains 8 red balls and 4 black balls. Bag C contains 10 red balls and 2 black balls. A card is drawn from a well shuffled pack of 52 playing cards. If a face card is drawn, a ball is selected from Bag A. If an ace is drawn, a ball is selected from Bag B. If any other card is drawn , a ball is selected from Bag C. The conditional probability that Bag B was one from which a ball was selected, given that the ball selected was black is

A bag contains 4 white and 5 red balls. Second bag contains 6 white and 3 red balls. A ball is transferred from first bag to second and then a ball is drawn from the second bag. Find the probability that this ball drawn is red.

A balloon starts from rest from the ground and moves with uniform acceleration g/8. When it reaches a height h a ball is dropped from it. Find the time taken by the ball to reach the ground.

Let bag A contains 3 red balls and 9 black balls. Bag B contains 8 red balls and 4 black balls. Bag C contains 10 red balls and 2 black balls. A card is drawn from a well shuffled pack of 52 playing cards. If a face card is drawn, a ball is selected from Bag A. If an ace is drawn, a ball is selected from Bag B. If any other card is drawn , a ball is selected from Bag C. The conditional probability that a bag A was one from which a ball was selected ,given that a red ball is selected is

Let bag A contains 3 red balls and 9 black balls. Bag B contains 8 red balls and 4 black balls. Bag C contains 10 red balls and 2 black balls. A card is drawn from a well shuffled pack of 52 playing cards. If a face card is drawn, a ball is selected from Bag A. If an ace is drawn, a ball is selected from Bag B. If any other card is drawn , a ball is selected from Bag C. The conditional probability that Bag A was one from which a ball was selected, given that the ball selected was red

ALLEN-TEST PAPER-Exercise (Physics)
  1. A rectangular farm house has a 1km difference between its sides. Two f...

    Text Solution

    |

  2. The graph shown the variation with times t of the velocity v of an obj...

    Text Solution

    |

  3. A ball is released from point A. During its motion ball takes two seco...

    Text Solution

    |

  4. Velocity v//s Position graph of a particle performing curvilinear moti...

    Text Solution

    |

  5. Two identical blocks A and B each of weight 20N are placed on a fricti...

    Text Solution

    |

  6. Figure shows an At wood machine in which m(1)+m(2)=M is constant. Now ...

    Text Solution

    |

  7. As shown in the figure, Tarzan travels from one place to another by sw...

    Text Solution

    |

  8. Two equal rods joined at one end are kept on a smooth surface as shown...

    Text Solution

    |

  9. A three part rocket begins intact as a single object in distant outer ...

    Text Solution

    |

  10. A three part rocket begins intact as a single object in distant outer ...

    Text Solution

    |

  11. Five uniform circular plates, each of diameter D and mass m are laid o...

    Text Solution

    |

  12. In the figure, the L-shaped shaded piece is cut from a metal plate of ...

    Text Solution

    |

  13. The centre of mass of a non uniform rod of length L, whose mass per un...

    Text Solution

    |

  14. Find the center of mass(x,y,z) of the following structure of four iden...

    Text Solution

    |

  15. A thick uniform wire is bent into the shape of the letter “U” as shown...

    Text Solution

    |

  16. In the given figure four rods AB,BC,CD and DA have mass m, 2m, 3m and ...

    Text Solution

    |

  17. A uniformly thick plate in the shape of an arrow head has dimensions a...

    Text Solution

    |

  18. An object comprises of a uniform ring of radius R and its uniform chor...

    Text Solution

    |

  19. In a head on collision between two identical particles A and B moving ...

    Text Solution

    |

  20. A machine gun fires 10 bullets per second in horizontal direction. Mas...

    Text Solution

    |