Home
Class 11
PHYSICS
A 2-m wide truck is moving with a unifor...

A `2-m` wide truck is moving with a uniform speed `v_(0)=8 ms^(-1)` along a straight horizontal road. `A` pedestrian starts to cross the road with a uniform speed `v` when the truck is `4 m` away from him, The minimum value of `v` so that he can cross the road safely is .

Promotional Banner

Topper's Solved these Questions

  • COMPOSITION AND RESOLUTION OF VELOCITIES

    NN GHOSH|Exercise Exercise|25 Videos
  • CENTRIPITAL AND CENTRIFUGAL FORCES

    NN GHOSH|Exercise Exercises (B)|36 Videos
  • CONDUCTION OF HEAT AND RADIATION

    NN GHOSH|Exercise All Questions|24 Videos

Similar Questions

Explore conceptually related problems

A particle is moving at uniform speed 2 ms^(-1) along a circle of radius 0.5m .The centripetal acceleration of particle is

A boy is moving with constant velocity v_(0) on a straight road. When he is at a distance d behind the bus, the bus starts from rest and moves with a constant acceleration alpha . Find the minimum value of v_(0) so that the boy catches the bus.

A car is moving along a straight horizontal road with a speed v_(0) . If the coefficient of friction between the tyre and the road is mu, the shortest distance in which the car can be stopped is.

A car is moving along a straight horizontal road with a speed v_(0) . If the coefficient of friction between the tyres and the road is mu , the shortest distance in which the car can be stopped is

A body is moving with uniform velocity of 8 ms^-1 . When the body just crossed another body, the second one starts and moves with uniform acceleration of 4 ms^-2 . The time after which two bodies meet will be :

A boy is standing on a truck moving with a constant velocity of 15 m//s on the horizontal road. The boy throws a ball in such a way that it returns to the truck after the truck has moved 60 m . Find the speed and the angle of projection (a) as seen by the truck and (b) as seen from the road.

A person is standing on a truck moving with a constant velocity of 14.7 m/s o a hrozontal road. The man throws a ball in such a way that it returns to the truck after the truck has moved 58.8 m. Find the speed and the angle of projection. a. as seen from the truck b. as seen fromt the road.

NN GHOSH-COMPOSITION AND RESOLUTION OF VELOCITIES-Exercise
  1. A 2-m wide truck is moving with a uniform speed v(0)=8 ms^(-1) along a...

    Text Solution

    |

  2. The greatest an least resultant of two forces acting at a point are 13...

    Text Solution

    |

  3. A particle is acted on by forces 1, 2,3 and 4 N parallel to the side o...

    Text Solution

    |

  4. A pith ball of mass 1.5 g, suspended by a silk fibre, is blown to one ...

    Text Solution

    |

  5. The resultant of two equal velocities is equal to either. What is the ...

    Text Solution

    |

  6. A uniform rod of mass 3 kg and length 1 m is suspended from a fixed po...

    Text Solution

    |

  7. A river is (1)/(2)km wide and flows at the rate of 3 kmph. A man, who ...

    Text Solution

    |

  8. To a man walking at 5kmph rain appears to fall vertically, and when he...

    Text Solution

    |

  9. A ship is travelling due east at 10 km/h. A ship heading 30^(@) east o...

    Text Solution

    |

  10. A motorboat going downstream overcome a raft at a point A, tau=60min l...

    Text Solution

    |

  11. A man walking on a road with a velocity of 5 km per hour encounters ra...

    Text Solution

    |

  12. If the resultant of two forces of magnitudes p and 2p is perpendicular...

    Text Solution

    |

  13. Two cars are moving in the same direction with the same speed 30 km//h...

    Text Solution

    |

  14. A man wants to cross a river 500 m wide. His rowing speed in still wat...

    Text Solution

    |

  15. Find the speed of two objects if ,when they move uniformly towards eac...

    Text Solution

    |

  16. The resultant of two forces of magnitude 5 N and 3 N trisects the angl...

    Text Solution

    |

  17. Two bodies were thrown simultaneously from the same point, one, straig...

    Text Solution

    |

  18. Two particles, 1 and 2, move with constant velocities v1 and v2 along ...

    Text Solution

    |

  19. An aeroplane has to go from a point O to another point A, at distance ...

    Text Solution

    |

  20. Two boats A and B moved away from a boy anchored in the middle of a ri...

    Text Solution

    |

  21. A boat moves relative to water with a velocity which is n=2.0 times le...

    Text Solution

    |