Home
Class 11
PHYSICS
A ball of mass 250 g moving with 20 m/s ...

A ball of mass 250 g moving with 20 m/s strikes a vertical wall and rebounds along the same line with a velocity of 15 m/s. If the time of contact is 0.1 s, the force exerted by the wall on the ball is

A

`87.5" N"`

B

`12.5" N"`

C

`-12.5" N"`

D

`-87.5" N"`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • FORCE

    TARGET PUBLICATION|Exercise Classical Thinking (4.1 Types of force)|3 Videos

  • FORCE

    TARGET PUBLICATION|Exercise Classical Thinking (4.2 General idea of gravitational, electromagnetic and nuclear force from daily life experiences)|9 Videos

  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos

  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (EVALUATION TEST)|21 Videos

Similar Questions

Explore conceptually related problems

A ball of mass 500 gram strikes a wall with a velocity of 80 m/s and rebounds with the same velocity. If the tme of contact is 1/30 sec, then the force exerted by the ball on the wall is

A ball of mass 2 kg is moving with velocity 20 m/sec strikes with the surface and rebounds with same speed, if time of contact is 0.1 sec then calculate average force on the ball.

A ball of mass 10 gm dropped from a height of 5m hits the floor and rebounds to a height of 1.25m. If the ball is in contact with the ground for 0.1s, the force exerted by the ground on the ball is (g=10 m//s^(2))

A ball of mass 0.5 kg moving with a velocity of 2 m//s strikes a wall normally and bounces back with the same speed . If the time of contact between the ball and the wall is 1 millisecond , the average force exerted by the wall on the ball is

A cricket ball of mass 0.5 kg strikes a circket bat normally with a velocity of 20" m s"^(-1) and rebounds with a velocity of 10" m s"^(-1) . The impulse of the force exerted by the ball on the bat is

A ball of mass 10 g moving perpendicular to the plane of the wall strikes it and rebounds in the same line with the same velocity. If the impulse experienced by the wall is 0.54 Ns, the velocity of the ball is

A ball of mass 0.5 kg moving with a velocity of 2 ms^(-1) strikes a wall normally and bounces back with the same speed. If the time of contact between the ball and the wall is one millisecond, the average force exerted by the wall on the ball is

A ball of mass m collides with a wall with speed v and rebounds on the same line with the same speed. If the mass of the wall is taken as infinite, then the work done by the ball on the wall is

TARGET PUBLICATION-FORCE -Evaluation Test
  1. A ball of mass 250 g moving with 20 m/s strikes a vertical wall and re...

    Text Solution

    |

  2. A hammer og mass M falls from height h to drive a pile of mass m into ...

    Text Solution

    |

  3. The momentum of a body of mass 8 kg is 20 kg m/s. A force of 12 N acts...

    Text Solution

    |

  4. A 1 kg ball moving with a speed of 20 m/s strikes a hard wall at an an...

    Text Solution

    |

  5. A particle moves in the xy plane under the influence of a force such t...

    Text Solution

    |

  6. Consider a two particle system with particles having masses m1 and m2 ...

    Text Solution

    |

  7. Two balls of masses 4 g and 10 g are moving with kinetic energies in t...

    Text Solution

    |

  8. A rope of mass 0.2 kg is connected at the same height of two opposite...

    Text Solution

    |

  9. A body of mass 4m is split into two equal parts by an internal explosi...

    Text Solution

    |

  10. Statement-1 : The centre of mass of a body may lie where there is no m...

    Text Solution

    |

  11. Particle A makes a perfectly elastic collision with anther particle B ...

    Text Solution

    |

  12. Assertion: For the object moving on the earth, earth is non-inertial f...

    Text Solution

    |

  13. An explosion blows a rock into three parts. Two parts go off at right ...

    Text Solution

    |

  14. Three identical spheres each of radius R are placed thouching each oth...

    Text Solution

    |

  15. A circket ball of mass m is bowled at a batsman and gets to the bat tr...

    Text Solution

    |

  16. Two glass balls, two ivory balls, two cork balls, two cast iron balls,...

    Text Solution

    |

  17. A hollow metallic bob is filled with a liquid. A small hole is drilled...

    Text Solution

    |