Home
Class 12
PHYSICS
A ball is dropped on the floor from a he...

A ball is dropped on the floor from a height of 10m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 seconds, What is the average acceleration during contact.

Text Solution

Verified by Experts

`v_1=sqrt2gh=sqrt(2xx10xx10)=sqrt200`
`v_2=-sqrt(2xx10xx2.5) =-sqrt50`
Acceleration
`(Deltav)/(Deltat) = (v_1-v_2)/(Deltat)=(sqrt200+sqrt50)/0.01 = 2100 m/s^2`
Promotional Banner

Topper's Solved these Questions

  • KINETICS THEORY OF GASES

    MBD PUBLICATION|Exercise QUESTION BANK|264 Videos

  • MAGNETISM AND MATTER

    MBD PUBLICATION|Exercise QUESTION BANK|191 Videos

Similar Questions

Explore conceptually related problems

A ball is dropped from a height of 20 cm. The ball rebounds to a height of 10 cm. What is loss of energy?

A rubber ball of mass 0.05 kg falls from a height of 1 m and rebounds to a height of 0.5 m. Find the average force when their contact was 0.1 sec.

An elastic ball is dropped from a height of 100 m. Due to the earth, 20% of the energy is lost. To what height the ball will rise ?

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

A body moves along a straight line with acceleration 3m/s^2 for 2 seconds and then with acceleration 4 m/s^2 for 3 seconds . What is the average acceleration

A ball is dropped from the top of a tower 100m high. Simultaneously another ball is thrown upward with a speed of 50m/s . After what time do they cross each other ?

A body is dropped from a height of 100m. At what height the velocity of the body will be equal to one half of the velocity when it hits the ground ?

A ball is thrown vertically upwards from the ground with a velocity of 24.5 m/s . If g=9.8 m/s^2 , then the ball will be at a height of 29.4 metres from the ground after time

MBD PUBLICATION-LINEAR MOMENTUM FORCE-QUESTION BANK
  1. A stone is thrown upwards with a speed u from the top of a tower reach...

    Text Solution

    |

  2. A particle moving with a uniform acceleration 24m and 64m in the first...

    Text Solution

    |

  3. A ball is dropped on the floor from a height of 10m. It rebounds to a ...

    Text Solution

    |

  4. An elevator in which a man is standing is moving upwards with a speed ...

    Text Solution

    |

  5. A man is walking on a road with a velocity of 3km/h . Suddenly rain st...

    Text Solution

    |

  6. A particle moves in x-y plane according to equations x=4t^2+5t+16 and ...

    Text Solution

    |

  7. A person sitting in a train moving with constant velocity along a stra...

    Text Solution

    |

  8. According to Newton's law, every force is accompanied by an equal and ...

    Text Solution

    |

  9. A ball is suspended a cord from the ceiling of a motor car. What will ...

    Text Solution

    |

  10. A ball is suspended by a cord from the ceiling of a motor car. What wi...

    Text Solution

    |

  11. A ball is suspended by a cord from the ceiling of a motor car. What wi...

    Text Solution

    |

  12. Two bodies of mass M and m are allowed to fall from the same height. I...

    Text Solution

    |

  13. Give some examples of Newon's third law of motion.

    Text Solution

    |

  14. Air is thrown on a sail attached to a boat from an electric fan placed...

    Text Solution

    |

  15. A spring weighing machine inside a stationary lift reads 50kg when a m...

    Text Solution

    |

  16. A spring weighing machine inside a stationary lift reads 50kg when a m...

    Text Solution

    |

  17. A man stands in a lift going downward with uniform velocity. He experi...

    Text Solution

    |

  18. A lift is going up with an acceleration 4g. A man is inside the lift a...

    Text Solution

    |

  19. A 5 kg body is suspended from a spring balance physical balance. If bo...

    Text Solution

    |

  20. Some of the Passengers sitting in a stationary carriage push it from i...

    Text Solution

    |