Home
Class 11
PHYSICS
A hockey player is moving northward and ...

A hockey player is moving northward and suddenly turns westward with the same speed to avoid an opponet. The force that acts on the player is.

A

Frictional force along westward

B

Muscle force along southward

C

Frictional force along south-west

D

Muscle force along south-west

Text Solution

Verified by Experts

The correct Answer is:
C

Consider the adjacent diagram

Let OA = `p_(1)` = initial momentum of player northward
`AB = p_(2)` = Final momentum of player towards west
Clearly `OB = OA + AB`
Change in momentum `=p_2 - p_1`
= Clearly resultant AR will be along south - west.
Promotional Banner

Topper's Solved these Questions

  • NEWTON'S LAWS OF MOTION

    ERRORLESS|Exercise NCERT BASED QUESTION (THIRD LAW OF MOTION)|11 Videos
  • NEWTON'S LAWS OF MOTION

    ERRORLESS|Exercise NCERT BASED QUESTION (CONSERVATION OF LINEAR MOMENTUM AND IMPULSE)|29 Videos
  • NEWTON'S LAWS OF MOTION

    ERRORLESS|Exercise ASSERTION & REASON |18 Videos
  • MOTION IN TWO DIMENSION

    ERRORLESS|Exercise ASSERTION & REASON|19 Videos
  • ROTATIONAL MOTION

    ERRORLESS|Exercise Assertion & Reason|25 Videos

Similar Questions

Explore conceptually related problems

A train is moving north with speed 20 m s. If it turns west with same speed

A car is moving along a road with a uniform speed of 20 km/hour. The net force acting on the car is

A particle of mass m moving eastward with a velocity V collides with another particle of same mass moving northwards with the same speed V . The two particles coalesce and the new particle moves in NE direction. Calculate magnitude and direction of velocity of new particle.

A particle is moving eastwards with a velocity 15 ms^(-1) .Suddenly it moves towards north and moves with the same speed in time 10 sec .The average acceleration during this time is

A body is moving with a unifrorm speed along a circle . Is there any force acting on the body ?

An object of mass 20 kg moves at a constant speed of 5ms^(-1) . A constant force, that acts for 2 sec on the object, gives it a speed of 3ms^(-1) in opposite direction. The force acting on the object is

An object of mass 10kg moves at a constant speed of 10 ms^(-1) . A constant force, that acts for 4 sec on the object, gives it a speed of 2ms^(-1) in opposite direction. The force acting on the object is :

A body is moving along a circular path such that its speed is always constant. Should there be a force acting on the body?

ERRORLESS-NEWTON'S LAWS OF MOTION-NCERT BASED QUESTION ( SECOND LAW OF MOTION)
  1. A body with mass 5 kg is acted upon by a force vec(F) = (- 3 hat (i) +...

    Text Solution

    |

  2. A car of mass m starts from rest and acquires a velocity along east up...

    Text Solution

    |

  3. A hockey player is moving northward and suddenly turns westward with t...

    Text Solution

    |

  4. A body of mass 2kg travels according to the law x(t) = pt + qt^(2) + r...

    Text Solution

    |

  5. A body of mass 4 kg is accelerated up by a constant force, travels a d...

    Text Solution

    |

  6. A solid disc of mass M is just held in air horizontally by throwing 40...

    Text Solution

    |

  7. When a bullet is fired a target, its velocity dwecreases by half after...

    Text Solution

    |

  8. A ball of mass 400 gm is dropped from a height of 5 m. A boy on the gr...

    Text Solution

    |

  9. n balls each of mass m impinge elastically each second on a surface wi...

    Text Solution

    |

  10. A rope of mass 0.1 kg is connected at the same height of two opposite ...

    Text Solution

    |

  11. A block of mass m is placed on a smooth wedge of inclination theta. T...

    Text Solution

    |

  12. A balloon with mass m is descending down with an acceleration a (where...

    Text Solution

    |

  13. A solid sphere of mass 2 kg is resting inside a cube as shown in the f...

    Text Solution

    |

  14. The mass of a lift is 2000kg . When the tension in the supporting cabl...

    Text Solution

    |

  15. A 10 kg stone is suspended with a rope of breaking strength 30 kg-wt. ...

    Text Solution

    |

  16. A person of mass 60 kg is inside a lift of mass 940 kg and presses the...

    Text Solution

    |

  17. A lift is going up. The total mass of the lift and the passenger is 15...

    Text Solution

    |

  18. A sphere is accelerated upwards with the help of a cord whose braking ...

    Text Solution

    |

  19. The spring balance inside a lift suspends an object. As the lift begin...

    Text Solution

    |

  20. A mass 1 kg is suspended by a thread. It is (i) lifted up with an ac...

    Text Solution

    |