Home
Class 12
PHYSICS
In Fig. 5-54a, a constant horizontal for...

In Fig. 5-54a, a constant horizontal force `vec(F)_(a)` is applied to block A, which pushes against block B with a 15.0 N force directed horizontally to the right. In Fig. 5-54b, the same force `vec(F)_(a)` is applied to block B, now block A pushes on block B with a 10.0 N force directed horizontally to the left. The blocks have a combined mass of 12.0 kg. What are the magnitudes of (a) their acceleration in Fig. 5-54a and (b) force `vec(F)_(a)` ?

Text Solution

Verified by Experts

(a) `2.08" m"//"s"^(2),` (b) `25.0" N"`
Promotional Banner

Topper's Solved these Questions

  • FORCE AND MOTION - I

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Single Correct Choice Type)|36 Videos
  • FORCE AND MOTION - I

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (More than One Correct Choice Type)|5 Videos
  • FORCE AND MOTION - I

    RESNICK AND HALLIDAY|Exercise CHECKPOINT|5 Videos
  • FLUIDS

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type )|5 Videos
  • FORCE AND MOTION-II

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|1 Videos

Similar Questions

Explore conceptually related problems

A horizontal force F pushes a 4kg block (A) which pushes against a 2kg block (B) as shown The have an acceleration of 3m//s^(2) to the right There is no friction between the blocks and the surface on which they slide. What is the net force B exerts on A .

A shown in Fig. two blocks are placed in contact on a smooth table. A horizontal force of 6 N is applied on 20 kg block. (i) With what force does the block press the 10 kg block ? (ii) If the same force is applied on 10 kg block, with what force will the 20 kg block press the 10 kg block ?

A block with a weight of 4.0 N is at rest on a horizontal surface A 1.0 N upward force is applied to the block by means of an attached vertical string. What are the (a) magnitude and (b) direction of the force of the block on the horizontal surface ?

Across a horizontal floor, a 102 kg block is pulled at a constant speed of 5.5 m/s by an applied force of 125 N directed 38^(@) above the horizontal. Calculate the rate at which the force does work on the block.

A block of unknown mass is at rest on a rough, horizontal surface. A horizontal force F is applied to the block. The graph in the figure shows the acceleration of the block with respect to the applied force. The mass of the block is

A 1 kg block is being pushed against a wall by a force F=75N as shown in the figure. The coefficient of friction is 0.25. The magnitude of acceleration of the block is:

RESNICK AND HALLIDAY-FORCE AND MOTION - I -PROBLEMS
  1. If Fig. 5-48, a chain consisting of five links, each of mass 0.100 kg,...

    Text Solution

    |

  2. A lamp hangs vertically from a cord in a descending elevator that dece...

    Text Solution

    |

  3. An elevator cab that weighs 29.0 kN moves upward. What is the tension ...

    Text Solution

    |

  4. An elevator cab is pulled upward by a cable. The cab and its single oc...

    Text Solution

    |

  5. The Zacchini family was renowned for their human-cannonball act in whi...

    Text Solution

    |

  6. Figure 5-50 shows two blocks connected by a cord (of negligible mass) ...

    Text Solution

    |

  7. A 93 kg man lowers himself to the grouund from a height of 10.0 m by h...

    Text Solution

    |

  8. As shown in Fig. 5-51, body C (2.9 kg) and body D (1.9 kg) are suspend...

    Text Solution

    |

  9. Figure 5-52 shows four penguins that are being play-fully pulled along...

    Text Solution

    |

  10. Two blocks are in contact on a frictionless table. A horizontal force ...

    Text Solution

    |

  11. In Fig. 5-54a, a constant horizontal force vec(F)(a) is applied to blo...

    Text Solution

    |

  12. Figure 5-55 shows a man sitting in a bosun's chair that dangles from a...

    Text Solution

    |

  13. A 10 kg monkey climbs up a massless rope that runs over a frictionless...

    Text Solution

    |

  14. Figure shows a 5.00 kg block being pulled along a frictionless floor b...

    Text Solution

    |

  15. A hot-air balloon of mass M is descending vertically with downward acc...

    Text Solution

    |

  16. In shot putting, many athletes elect to launch the shot at an angle th...

    Text Solution

    |

  17. Figure 5-58 gives, as a function of time l, the force component F, tha...

    Text Solution

    |

  18. Figure 5-59 shows a box of mass m(2)=1.0 kg on a friction-less plane i...

    Text Solution

    |

  19. Figure 5-50 shows Atwood's machine, in which two containers are connec...

    Text Solution

    |

  20. Figure 5-60 shows a section of a cable-car system. The maximum permiss...

    Text Solution

    |